Jandy DEV Series Diatomaceous Earth Pool Filters

⚠️ WARNING

FOR YOUR SAFETY - This product must be installed and serviced by a professional pool/spa service technician. The procedures in this manual must be followed exactly. Improper installation and/or operation can create dangerous high pressure which can cause the filter lid to be blown off, possibly causing death, serious injury or property damage. Improper installation and/or operation will void the warranty.

Before installing this product, read and follow all warning notices and instructions that accompany this filter. Failure to follow warning notices and instructions may result in property damage, serious injury, or death.

Table of Contents

Section 1. Safety Information

• 1.1 Important Safety Warning
• 1.2 General Safety Instructions

Section 2. General Information

• 2.1 Introduction
• 2.2 Description
• 2.3 General Requirements
• 2.4 DE Requirements
• 2.5 Specifications and Dimensions

Section 3. Installation Instructions

• 3.1 Filter Location
• 3.2 Anchor Bracket Installation
• 3.3 Filter Preparation
• 3.4 Filter Plumbing
• 3.5 Clamp Installation, DEV Series

Section 4. Start-Up and Operation

• 4.1 Preparing Diatomaceous Earth
• 4.2 Coating the Filter Grids
• 4.3 New Pool and Seasonal Start-up
• 4.4 Valve Operation

Section 5. Filter Disassembly and Assembly

• 5.1 Filter Tank Disassembly/Assembly
• 5.2 Filter Grid Disassembly/Assembly

Section 6. Maintenance

• 6.1 General Maintenance
• 6.2 Backwashing
• 6.3 Pressure Gauge
• 6.4 Cleaning the Filter Grids with Water
• 6.5 Cleaning Filter Grids with Muriatic Acid

Section 7. Winterizing

Section 8. Troubleshooting

Section 9. Parts List and Exploded View

• 9.1 Jandy DEV Filter Parts List
• 9.2 Exploded View of Jandy DEV Filter

Section 10. Head Loss Curves

• 10.1 Jandy DEV Filter Design Head Loss Curves

Equipment Information Record

Date of Installation:

Initial Pressure Gauge Reading (with clean filter):

Pump Model:

Filter Model:

Notes:

Horsepower:

Serial Number:

Section 1. Safety Information

1.1 Important Safety Warning

⚠️ WARNING

• Do not connect system to an unregulated city water system or other external source of pressurized water producing pressures greater than 35 PSI.
• Pressurized air in system can cause the filter lid to be blown off which can result in death, serious personal injury, or property damage. Be sure all air is out of system before operating or testing the equipment.

⚠️ WARNING

MAXIMUM OPERATING PRESSURE OF THE FILTER IS 50 PSI. NEVER SUBJECT THE FILTER TO ANY OPERATING PRESSURE EXCEEDING 50 PSI.

This filter operates under high pressure. When any part of the circulating system, i.e., filter, pump, valve(s), clamp, etc. is serviced, air can enter the system and become pressurized when the system is restarted. Pressurized air can cause the filter lid to be blown off which can result in death, serious personal injury or property damage. To avoid this potential hazard, follow all of the instructions in this manual.

⚠️ WARNING

To minimize risk of severe injury or death the filter and/or pump should not be subjected to the piping system pressurization test. Local codes may require the pool piping system to be subjected to a pressure test. These requirements are generally not intended to apply to the pool equipment such as filters or pumps. Jandy pool equipment is pressure tested at the factory. If however this WARNING cannot be followed and pressure testing of the piping system must include the filter and/or pump BE SURE TO COMPLY WITH THE FOLLOWING SAFETY INSTRUCTIONS:

• Check all clamps, bolts, lids, lock rings and system accessories to ensure they are properly installed and secured before testing.
• RELEASE ALL AIR in the system before testing.
• Water pressure for test must NOT EXCEED 35 PSI.
• Water temperature for test must NOT EXCEED 100°F (38°C).
• Limit test to 24 hours. After test, visually check system to be sure it is ready for operation.

Notice: These parameters apply to Jandy equipment only. For non-Jandy equipment, consult equipment manufacturer.

1.2 General Safety Instructions

ATTENTION INSTALLER:

This manual contains important information about the installation, operation and safe use of this product. This information should be given to the owner/operator of this equipment.

1. Use equipment only in a pool or spa installation.
2. Before repositioning valve(s) and before beginning the assembly, disassembly, or adjustment of the clamp, or any other service of the circulating system; (A) turn the pump off and shut off any automatic controls to ensure the system is not inadvertently started during servicing; (B) open the air release valve; (C) wait until all pressure is relieved (air will have stopped flowing from the air release valve).
3. Whenever installing the filter clamp follow Section 3.5 of this manual, "Clamp Installation", DEV Series.
4. Once service on the circulation system is complete, follow Section 4 of this manual, "Start-up and Operation".
5. Maintain circulation system properly. Replace worn or damaged parts immediately.
6. Be sure that the filter is properly mounted and positioned according to these installation instructions.
7. Do not pressure test above 35 PSI. Pressure testing must be done by a trained pool professional.

SAVE THESE INSTRUCTIONS.

Section 2. General Information

2.1 Introduction

This manual contains information for the proper installation and operation of the Jandy® DEV Series Diatomaceous Earth (DE) Filters. Procedures in this manual must be followed exactly. To obtain additional copies of this manual contact Jandy at 707.776.8200 ext. 237. For address information see back cover.

2.2 Description

Dirty water flows into a two or three port diverter valve, then into the filter through the lower bulkhead on the bottom of the tank and is directed through the DE grids. The debris is collected on the surface of the grids as the water flows through them. The clean water is directed into the manifold, then through the outlet tube, and finally, out of the filter through the upper bulkhead on the bottom half of the tank. The filtered water then goes through the two or three port diverter valve and is returned through the piping system to the pool.

As debris collects in the filter, the pressure will rise and water flow to the pool will diminish. The filter will eventually become so plugged with debris that it will be necessary to perform the backwash procedure. It is important to know when to backwash the filter. See Section 6 for further discussion of backwashing the filter.

NOTE: A filter removes dirt and other suspended particles but does not sanitize the pool. Pool water must be sanitized and chemically balanced for clear water. The filtration system should be designed to meet local health codes. At a minimum, the system should turnover the total volume of water in your pool two to four times in a 24-hour period.

2.3 General Requirements

1. For best overall performance, place the system as close to the pool as possible.
2. The filter should be located on a level concrete slab so that the orientation of the valve outlets and the pressure gauge are convenient and accessible for the installation and operation of the unit.
3. Protect the filter from the weather.
4. If fitting a chlorinator and/or any other device into the filtration plumbing circuit, great care must be exercised to ensure that the appliance is installed in accordance with the Manufacturer's Instructions and any standards that may exist.
5. Jandy recommends the use of barrel unions to connect each component of the water conditioning system to ease in future servicing. Barrel unions are provided with all Jandy filters.

⚠️ WARNING

The maximum operating pressure for this filter is 50 psi. Never subject the filter to operating pressure exceeding 50 psi. Operating pressures above 50 psi can cause the lid to be blown off, which can result in death, serious personal injury, or property damage.

When performing hydrostatic pressure tests or when testing for external leaks of the completed filtration and plumbing system, ensure that the maximum pressure the filtration system is subjected to does not exceed the maximum working pressure of any of the components within the system.

2.4 DE Requirements

See your local pool distributor or dealer for DE type recommendations. See Table 2 on page 10 for the amount of DE to be used.

2.5 Specifications and Dimensions

See Table 1 and Figure 1.

Table 1. DE Filter Specifications

Figure 1. Dimensions, Jandy DEV Series Filter with Jandy NeverLube® Backwash Valve

Diagram Description: This figure shows the physical dimensions of the Jandy DEV Series filter. It indicates the overall width as 28 inches and provides specific height measurements for different parts of the tank, labeled as "A" (41 inches for DEV48, 47 inches for DEV60), and the location of the outlet, inlet, and drain ports.

Section 3. Installation Instructions

⚠️ WARNING

Use equipment only in a pool or spa installation. Do not connect system to an unregulated city water system or other external source of pressurized water producing pressures greater than 35 psi.

3.1 Filter Location

1. Select a well-drained area, one that does not flood when it rains. Damp, non-ventilated areas should be avoided.
2. Provide solid mounting for the filter and pump system. Install system on a concrete slab or solid concrete blocks to avoid risk of settlement. Do not use sand to level the filter as the sand will wash away. Filters, once loaded with media, can weigh up to 800 lbs.
3. Install electrical controls at least five (5) feet from the filter. This will allow enough room to stand away from the filter during start-up.
4. Allow sufficient clearance around the filter to permit a visual inspection of the clamp ring. See Figure 2.
5. Allow sufficient space above the filter to remove the filter lid and filter element for cleaning and servicing.
6. Position the filter to safely direct water drainage. Align the air release valve to safely direct pressurized purged air or water.

⚠️ WARNING

Water discharged from an improperly positioned filter or valve can create an electrical hazard which can cause death, serious injury or property damage.

? CAUTION

Maintain your pressure gauge in good working order. The pressure gauge is the primary indicator of how the filter is operating.

Figure 2. Filter Location

Diagram Description: This figure illustrates the recommended filter placement, showing a circular filter unit with "6" MINIMUM CLEARANCE" indicated around it, emphasizing the need for adequate space.

7. If the filter needs to be located above the water level of the pool, it can be raised 2.5 ft. without affecting the pump efficiency. A check valve is recommended on the suction line to the pump.
8. If the filter is to be installed below the water level of the pool, isolation valves should be installed on both the suction and return lines to prevent back flow of pool water during any routine servicing that may be required.

3.2 Anchor Bracket Installation

In Florida, building codes require that all appliances be securely fastened to the equipment pad in order to withstand high wind pressures created by hurricanes. Jandy provides an anchor bracket kit for this purpose. Please see the Parts List in Section 9 of this manual for the correct part number.

NOTE: Anchor screws and washers are not included with the filter or the anchor bracket kit. Jandy recommends that a 1¼" x 2" long stainless steel Tapcon® type concrete screw be used to mount the anchor bracket to the equipment pad. The Tapcon type concrete screw meets Florida building code requirements.

After placing the filter on the equipment pad, as outlined in Section 3.1, drill a 5/32" hole in the concrete at each of the four brackets on the filter. (The correct size drill bit is usually provided with the concrete screws when purchased.)

Install the Tapcon® screws and washers through each of the four (4) anchor brackets to secure the filter to the equipment pad. See Figure 3. Do not over-torque the screws.

3.3 Filter Preparation

1. Check carton for damage due to rough handling in shipment. If carton or any filter components are damaged, notify carrier immediately.
2. Carefully remove the accessory package.
3. With the carton in an upright position, remove the filter tank from the carton.

? CAUTION

DO NOT move the filter tank without the shipping screw in place or the filter grids may be damaged while installing the filter tank.

4. A visual inspection of all parts should be made now. See the parts list on page 15.

Figure 3. Anchor Filter to Equipment Pad

Diagram Description: This figure shows two methods for anchoring the filter to an equipment pad. The left diagram illustrates the "Filter Tank Anchor Bracket Installation" with anchor brackets attached to the tank bottom and #12x1" Pan Head Screws. The right diagram shows "Anchor Bracket to Platform Installation", detailing a mounting bracket secured to a concrete pad with a 1/4" x 2-1/4" Tapcon Screw and Washer, with a 5/32" drilled hole.

Section 3.4 Filter Plumbing

1. This filter operates under pressure. When clamped properly and operated without air in the water system, this filter will operate in a safe manner.
2. If doubt exists as to the pressure which the system will be subjected to, install an ASME approved automatic Pressure Relief Valve or Pressure Regulator in the circulation system set to the lowest working pressure of any of the components in the system.
3. Place the filter on the concrete pad, lined up with the inlet/outlet pipes (see Figure 4). Remove the shipping screw.
4. To mount the pressure gauge/air release assembly to the top of the filter tank (located in the accessory bag):
   a. Place the smaller, thicker o-ring onto the threads of the tank adapter (see Fig. 5). Slide the tank adapter through the coupling nut and into the filter tank. Use the flats on the tank adapter to tighten. Do not overtighten.
   b. Place the larger, thinner o-ring onto the gauge housing. Thread the housing into the coupler on the tank adapter.
   c. Orient the gauge/air release assembly in the desired position. Raise and thread the locknut onto the bottom of the gauge/air release assembly. Hand tighten the nut only. Using a wrench to tighten the nut may damage the nut, gauge or air release assembly.
5. To reduce pressure losses, 2" (minimum) piping is recommended for plumbing the system.
6. For best efficiency use the fewest possible number of fittings. This will prevent a restriction in the water flow.
7. Make all plumbing connections in accordance with local plumbing and building codes. Filter connections are provided with an o-ring seal. To avoid damage to the o-rings, use only a silicone base lubricant on the o-rings. Do not use pipe joint compound, glue or solvent on inlet/outlet union coupling nuts.
8. Keep piping tight and free of leaks. Pump suction line leaks may cause air to be entrapped in filter tank or loss of prime at the pump. Pump discharge line leaks may show up as dampness or jets of water.
9. Support the inlet/outlet pipes independently to prevent any undue strains on the filter's two or three port diverter valve.
10. Connect the pipes using the unions supplied with the filter. Do not use teflon tape or pipe dope on any unions. Assemble the unions dry and hand tighten.

Figure 4. Basic Pool/Spa Combination Plumbing

Diagram Description: This is a schematic showing a typical plumbing layout for a pool/spa system. It includes a Jandy Heater, Jandy Pump, Jandy Filter, and connections for Pool Return, Spa Return, Spa Make Up, From Pool Drain, From Pool Skimmer, and Spa Suction. It also shows a Jandy Check Valve.

? CAUTION

Be sure that all provisions for wastewater disposal meet local, state or national codes. One hundred gallons (100 gals.) or more of pool water will be discharged during filter backwashing. Do not discharge water where it will cause flooding or damage.

Section 3.5 Clamp Installation, DEV Series

1. Be certain that the o-ring seat is clean and that the o-ring is in position in the lower tank half. Press the filter lid onto the lower half, sandwiching the o-ring between the two halves.
2. Holding the ends of the filter clamp apart, position the hinged segment of the filter clamp over both upper and lower tank flanges. Bring the ends of the filter clamp together.
3. Place the "T" nut and threaded rod assembly into the clamp. Be sure the "T" nut is seated in the clamp in the proper orientation. See Figure 6.
4. Use a 9/16" socket on the tightening nut until the clamp ring halves touch each other, or are within 1/16" (See Fig. 7) but do not overtighten as the clamp can break. If unable to tighten as indicated, do not operate the filter and call a service technician immediately.

Figure 5. Pressure Gauge/Air Release Assembly

Diagram Description: This figure shows an exploded view of the pressure gauge and air release assembly, detailing components such as the housing, o-rings, tank adapter, tank adapter to housing coupler, and the gauge itself.

⚠️ WARNING

Follow these instructions carefully. Improper clamp installation can cause the filter lid to be blown off, which can result in death, serious personal injury or property damage.

⚠️ WARNING

NEVER start the pump while standing within five (5) feet of the filter. Starting the pump while there is pressurized air in the system can cause the filter lid to be blown off, which can cause death, serious personal injury or property damage.

Figure 6. Filter Clamp Ring

Diagram Description: This figure shows the components of the filter clamp ring, including the clamp ring itself, and the "T" Nut and Threaded Rod assembly with a tightening nut and shoulder.

Figure 7. Filter Clamp Ring Assembly

Diagram Description: This figure illustrates the process of assembling the filter clamp ring. It shows the "T" Nut, Threaded Rod, and Tightening Nut with Shoulder, and how they fit together. It also shows the clamp ring in a closed position with a "GAP NOT TO EXCEED 1/16"" indicator, and notes to use a 9/16" socket for tightening.

⚠️ WARNING

NEVER operate the filter system at more than 50 psi of pressure. Operating the filter system in excess of 50 psi can cause the filter lid to be blown off, which can cause death, serious personal injury or property damage.

⚠️ WARNING

Changing the two or three port diverter valve handle while there is pressurized air in the system can cause the filter lid to be blown off, which can cause death, serious personal injury or property damage.

? Caution

Dust released during normal handling of diatomaceous earth can cause eye and respiratory irritation. Prolonged breathing of excess concentrations of dust may cause lung damage.

? Caution

Never operate the filter in excess of three (3) minutes without use of diatomaceous earth (DE). DE is the substance that filters the water, the filter cloth merely supports the DE. Operating without DE will damage filter grids and shorten filtering cycles.

? Caution

DO NOT operate the filter at water temperatures above 105° F (40.6° C). Water temperatures above the manufacturer's recommendations will shorten the life span of the filter and void the warranty.

5. After the first week of operation, check the clamp and retighten if necessary.
6. Check the filter clamp at least once a month.

Section 4. Start-Up and Operation

4.1 Preparing Diatomaceous Earth

Your filter requires diatomaceous earth (DE) for proper filtration and operation. The filter grids must be precoated with DE in order to protect their surfaces and provide the most efficient filtering action. Refer to Table 2 for the proper quantity of DE to use with your filter.

1. Using a one (1) pound coffee can, fill the can with diatomaceous earth (DE). Do not pack or compress the DE into the can.
2. Mix the required amount of DE with sufficient water in a separate bucket to make a thin, milky mixture (slurry).

NOTE: Excess DE will clog the system. Use amount specified in this manual.

3. Use the following instructions to coat the filter grids.

Table 2. DE Slurry Mixture

4.2 Coating the Filter Grids

1. Prepare the recommended amount of DE as outlined in Section 4.1.
2. Start the filter system as outlined in Section 4.3.
3. With the pump running and the pool skimmer valve open, slowly pour the mixture directly into the pool's skimmer basket. The slurry will be drawn into the filter.
4. After coating grids, rotate the bezel of the pressure gauge so that the arrow next to the word "CLEAN" is aligned with the needle of the gauge. This marks the original starting pressure of the system.
5. Clean the filter when the pressure of the system increases so that needle of the gauge aligns with the arrow next to the word "DIRTY" on the bezel of the gauge. This indicates an increased pressure of between 10 and 12 psi above original starting pressure.

4.3 New Pool and Seasonal Start-up

1. Set the filter valve (two or three port diverter or backwash) to the "FILTER" position.
2. Open the pump hair/lint pot lid and fill the pump basket with water to prime the system. Replace the lid. (You may have to do this several times on new and seasonal start-ups.)
3. Completely open the air release valve on the gauge/air release assembly by turning the knob on the back of the assembly fully counterclockwise (do not remove the knob).
4. Be sure to open any filter isolation valves that were installed in the system and make sure that the filter drain plug is in place.
5. Stand clear of the filter and start the pump to circulate water through the system. When a steady stream of water starts to come out of the air release valve, close the valve.
6. If this is a new filter, or the filter has just been backwashed, add the DE slurry as described in section 4.2.
7. Watch the pressure gauge to be sure that the pressure does not exceed 50 psi in the filter for normal operation. If the pressure approaches these limits, turn off the pump and backwash the filter (see Section 6.2). If the pressure remains high after backwashing and reapplying the DE slurry, refer to the troubleshooting guide on page 14 to identify possible causes and solutions.
8. After the pressure gauge has stabilized, turn the bezel ring so that the arrow next to the word "CLEAN" aligns with the needle of the gauge. As the filter cleans the water, the grids will clog over time, and the pressure will increase. When the needle of the pressure gauge aligns with the arrow next to the word "DIRTY" on the bezel ring, it is time to backwash the filter (see Section 6.2).

4.4 Valve Operation

1. The flow of water through a DE filter is controlled by an optional backwash valve or two or three port diverter valve.
2. The handle on top of the backwash valve or diverter valve can be moved to different positions. The function of each position is described below. See Figure 8.

NOTE: Depending on the model of backwash valve or diverter valve installed with your filter, it may have all or only some of the positions described in Table 3.

Figure 8. Diverter Valve Handle Positions

Diagram Description: This figure shows a circular diagram representing the handle positions for a diverter valve. The positions are labeled: FILTER, BACKWASH, RINSE, WASTE, RECIRCULATE, and CLOSED, with arrows indicating their respective functions.

Table 3. Valve Positions for Diverter Valve

Section 5. Filter Disassembly and Assembly

5.1 Filter Tank Disassembly/Assembly

1. Backwash filter according to the instructions in Section 6.2.

NOTE: Omit this step when first starting a new filter.

2. Turn off the pump. Switch off the circuit breaker to the pump motor.
3. IMPORTANT: Completely open air release valve on top of the filter tank to release all pressure from inside the tank and system.
4. Close the filter isolation valves on the system to prevent flooding. Remove the drain plug located at the bottom of the filter tank and allow the tank to drain.
5. Remove the tank clamp ring from the filter and remove the tank lid. Inspect the tank o-ring for cracks or tears and replace if necessary
6. Pull the DE filter grid assembly out of the filter tank bottom. Use the handles molded into the manifold to aid lifting.
7. While the DE filter grid assembly is out of the filter tank, rinse the inside of the tank with water. Replace drain plug.
8. Gently rinse the grids with water. After cleaning the filter grids, place the grid assembly back into the filter tank bottom (see Sections 6.4 and 6.5 for further grid cleaning instructions).
9. Replace the tank o-ring and tank lid.
10. Reinstall the tank clamp ring. See Section 3.5 for tank clamp ring installation.

5.2 Filter Grid Disassembly/Assembly

1. Remove the complete grid assembly by following the instructions in Section 5.1, steps 2-6.
2. Remove the manifold by first unscrewing the tie rod knob in the center of the manifold. Then lift the manifold assembly off of the grids and the outlet tube.
3. Remove the top spacer from the grids.
4. The individual filter grids can now be removed from the grid support. Use care to avoid damaging the grids.
5. See Figure 8 for the arrangement of filter grids in the filter grid assembly.
6. To reassemble the filter grid assembly, arrange the filter grids into position on the bottom plate (see Fig. 9). Use the plastic top spacer to hold the grids in place.

Figure 9. Filter Grid Arrangement

Diagram Description: This figure shows the arrangement of DE filter grids within the filter grid assembly. It depicts the bottom plate, the DEL FILTER GRID (7 required), and the DEL FILTER GRID, SHORT SPAN, with an outlet pipe and o-ring.

7. Inspect the o-ring at the top of the outlet tube for cracks or excessive wear. Replace if necessary.
8. Assemble the manifold to the top of the assembly. Make sure that the grids and outlet tube fit securely into the manifold and that the retaining rod extends up through the hole in the center of the manifold.
9. Place the tie rod knob on the tie rod and tighten. Tighten until the filter grid assembly is snug. Do not overtighten.
10. Reassemble the tank o-ring and tank lid.
11. Reinstall the tank clamp ring. See Section 3.5 for clamp installation.

Section 6. Maintenance

6.1 General Maintenance

1. Wash outside of filter with a mild detergent and water. Rinse off with a hose. Do not use solvents to clean the filter. Solvents will damage the plastic components of the filter.
2. Inspect the DE filter grids at least twice a year. Remove any foreign material that has not been backwashed out of the system.
3. Check pressure during operation at least once a week.
4. Remove any debris from the pumps and pool skimmer baskets.
5. Check pump and filter for any leaks. If any leaks develop, turn off the pump and call a qualified pool service technician.
6. Product safety signs or labels should be periodically inspected and cleaned by the product user as necessary to maintain good legibility for safe viewing distance.
7. Product safety signs or labels should be replaced by the product user when a person with normal vision, including corrected vision, is no longer able to read the safety signs or label message panel text at a safe viewing distance from the hazard. In cases where the product has an extensive expected life or is exposed to extreme conditions, the product user should contact either the product manufacturer or some other source to determine means for obtaining replacement signs or labels.

? Caution

Be sure that all provisions for wastewater disposal meet local, state or national codes. One hundred gallons (100 gals.) or more of pool water will be discharged during filter backwashing. Do not discharge water where it will cause flooding or damage.

8. Installation of new replacement safety signs or labels should be in accordance with the sign or label manufacturer's recommended procedure.

6.2 Backwashing

1. With the filter pump off, set the backwash valve or diverter valve handle to the "BACKWASH" position.

? Caution

Maintain your pressure gauge in good working order. The pressure gauge is the primary indicator of how the filter is operating.

2. Open the air release valve.
3. Stand clear of the filter and start the pump to circulate the water backwards through the filter to the waste line.
4. When a steady stream of water is expelled through the air release valve, close the valve.
5. Run the pump until the backwash discharge water is clear (repeat steps 1 thru 5 if required).
6. Switch the filter pump off.
7. Follow the procedure for coating the filter grids as described in Section 4.2.

6.3 Pressure Gauge

1. During operation of the filtration system, check the pressure gauge/air release assembly for air or water leaks at least once a week.
2. If you suspect a problem with the gauge, Jandy recommends that you call a qualified service technician to do any work on the filter/pump system.

6.4 Cleaning the Filter Grids with Water

1. Turn off the pump and switch off the circuit breaker to the pump motor. Open the air release valve on top of the filter tank. Close the filter isolation valves. Remove the drain plug.
2. Once all pressure has been relieved, remove the clamp ring and the filter lid. Inspect the o-ring for cracks or tears and replace if necessary.
3. Remove the filter grid assembly from the filter. Follow the instructions in Section 5.1.
4. Using a garden hose, thoroughly flush all contaminates from the filter grid surfaces.

Section 6.5 Cleaning Filter Grids with Muriatic Acid

⚠️ WARNING

Working with muriatic acid can be dangerous. When cleaning filter grids, always wear rubber gloves and eye protection. Add acid to water, do not add water to acid. Splashing or spilling acid can cause severe personal injury and/or property damage.

1. Check with your local pool store or service company to see if they offer filter grid de-scaling services.
2. Stiffening of the filter grid fabric is caused by mineral deposit buildup. It is usually due to deposits of either magnesium, calcium, alkalines or carbonates. Removal of these deposits may be accomplished by soaking the filter grids in a plastic tub or pail with six (6) parts water to one (1) part hydrochloric acid (muriatic acid).
3. Wear rubber gloves and eye protection when mixing the solution, and handling or rinsing the filter grids.
4. Soak for at least four (4) hours.
5. Rinse the filter grids thoroughly with water.
6. See Sections 5.1 and 5.2 for reassembly of the filter tank and filter grids.

Section 7. Winterizing

1. Turn off the pump and circuit breakers.
2. Open the air release valve and move the diverter valve handle to a position between two ports. This will allow air to flow to all ports.
3. Remove the drain plug at the base of the filter to ensure that the tank is empty. Store the drain plug and seal it in a safe place. Do not reinstall until next season at start-up.
4. Drain system piping of all water.
5. Cover the system with a tarpaulin or plastic sheet to protect it from the weather.

Section 8. Troubleshooting

1. For a list of common problems and solutions, see the Troubleshooting Guide on the following page.
2. Jandy recommends that you call a qualified service technician to do any work on the filter/pump system. For technical service, call 707.776.8200, ext. 260.

Table 4. Troubleshooting Guide

Section 9. Parts List and Exploded View

9.1 Jandy DEV Filter Parts List

9.2 Exploded View of Jandy DEV Filter

Diagram Description: This is a detailed exploded view of the Jandy DEV filter, showing all numbered parts from the parts list (1-28) and their positions within the filter assembly. It illustrates the tank, lid, manifold, grids, and various fittings.

Section 10. Head Loss Curves

10.1 Jandy DEV Filter Design Head Loss Curves

This section provides graphical data illustrating the design head loss and pressure drop for the Jandy DEV Series filters (DEV48 and DEV60) based on flow rate.

Diagram Description: A line graph plotting "Design Head Loss (ft head)" on the left y-axis and "Design Pressure Drop (psi)" on the right y-axis against "Flow Rate (gpm)" on the x-axis. Two lines represent the DEV48 and DEV60 models, showing how head loss and pressure drop increase with flow rate.

Limited Warranty

Jandy Pool Products, Inc. warrants all parts to be free from manufacturing defects in materials and workmanship for a period of one year from the date of retail purchase, with exceptions for specific components like AquaLink® RS units (2 years with surge protection), NeverLube® valves (lifetime), and AquaPure™ Electronic Chlorine Generator Electrolytic Cells (5-year prorated). This warranty is non-transferable and applies only to the original retail purchaser at the original installation site.

Jandy Pool Products, Inc.'s liability is limited to the repair or replacement of defective parts and does not cover labor costs for removal/reinstallation, transportation, or other repair materials. The warranty is voided by:

• Failure to properly install, operate, or maintain the product according to Jandy manuals.
• Workmanship of any installer.
• Improper pool/spa chemical balance (pH 7.2-7.8, TA 80-120 ppm, TDS < 2000 ppm excluding salt).
• Abuse, alteration, accident, fire, flood, lightning, rodents, insects, negligence, or acts of God.
• Scaling, freezing, or other conditions causing inadequate water circulation.
• Operating at flow rates outside specified limits.
• Use of non-factory authorized parts or accessories.
• Chemical contamination of combustion air or improper sanitizing chemical use (e.g., upstream of heater/cleaner hose or through skimmer).
• Overheating; incorrect wiring; improper electrical supply; collateral damage from O-Ring, DE grid, or cartridge element failure; or damage from running the pump with insufficient water.

LIMITATION OF LIABILITY: This is the only warranty given by Jandy Pool Products, Inc. No one is authorized to make other warranties. This warranty is in lieu of all other warranties, expressed or implied, including implied warranties of fitness for a particular purpose and merchantability. Jandy Pool Products, Inc. expressly disclaims liability for consequential, incidental, indirect, or punitive damages for breach of any expressed or implied warranty. This warranty grants specific legal rights, and other rights may vary by state or province.

WARRANTY CLAIMS: For prompt warranty consideration, contact your dealer with proof of purchase, model number, serial number, and date of installation. The installer will contact the factory for claim instructions and service center location. Alternatively, find a service center via www.jandy.com or by calling technical support at (707) 776-8200 extension 260. All returned parts require a Returned Material Authorization number.

Jandy Pool Products, Inc., 6000 Condor Drive, Moorpark, CA, USA 93021. Phone: 707.776.8200, FAX: 707.763.7785. Printed in U.S.A. © 2007 Jandy Pool Products, Inc.