Intex Krystal Clear SX 1500 Sand Filter Pump

Important Safety Instructions

⚠️ IMPORTANT: Read and follow all instructions carefully before installing and using this product. Keep for future reference.

• Always supervise people with physical disabilities.
• Keep children away from the filter and electrical cords to prevent entanglement and strangulation hazards.
• Children should not play with the appliance. User cleaning and maintenance should not be performed by children without supervision.
• This appliance can be used by persons with reduced physical, sensory, or mental capabilities or lack of experience and knowledge if they have been given supervision or instructions concerning the use of the appliance in a safe way and understand the risks involved.
• Assembly and disassembly of this product must be performed by an adult.
• Electrical Hazard: The filter must be powered by a separation transformer or supplied by a circuit with a residual current device (RCD) not exceeding 30 mA. Consult a qualified electrician if necessary. The filter must be connected to an electrical installation compliant with national standards (e.g., NF C 15-100).
• Always unplug the filter before cleaning or performing any maintenance. Disconnect the appliance from the power supply before mounting, dismounting, or cleaning.
• The power outlet must remain accessible after the product is installed.
• Do not bury the electrical cord. Ensure it is not damaged by lawnmowers or other garden equipment.
• If the power cord is damaged, it must be replaced by the manufacturer, its service agent, or a similarly qualified person to avoid a hazard.
• To reduce electrical risks, it is recommended not to use extension cords. Choose a location that allows direct connection to an outlet. The appliance must be placed so the power plug is accessible.
• Do not plug in the filter while the pool is in use. Do not unplug the product with wet hands.
• The filter must be placed at least 3.5 meters (11.5 ft) away from the pool.
• Keep the filter as far as possible from the pool to prevent children from climbing on it to access the pool.
• This unit is intended for use with above-ground pools only. Do not use with permanent pools.
• To reduce the risk of entrapment, never enter the pool if any strainers are detached, broken, damaged, or missing. Replace them immediately.
• Never swim or play near the strainers. Your body or hair could be sucked in, causing injury or drowning.
• Always turn off the pump before changing the valve position to avoid damaging the equipment or causing injury.
• Never use this product at a pressure higher than indicated on the tank.
• Pressure Hazard: Improper installation of the filter cover can cause an explosion, resulting in serious injury or death.
• This product must not be left outdoors in freezing temperatures as it is not protected against frost.
• This unit is intended for use only as described in this manual.
• Failure to follow these instructions may result in property damage, electric shock, serious injury, or death.

Product Overview and Specifications

The sand filter effectively removes suspended particles and purifies your pool water.

Product Name: SX 1500 Krystal Clear® Sand Filter

Model Number: SF90220-2

Electrical: 220-240 Volt AC, 50 Hz, 130 W

Maximum Service Pressure: 1.4 bar (20 psi)

Filtration Zone Recommended: 0.05 m² (0.54 ft²)

Filter Pump Flow Rate: 5.7 m³/hour (1500 gallons/hour)

Recommended Filter Media: #20 Silica Sand or Filter Glass (0.45-0.85 mm grain size, uniformity coefficient less than 1.75)

Recommended Media Quantity: 12 Kg (26 Lbs) of #20 Silica Sand, or 8.5 Kg (18.5 Lbs) of Filter Glass, or 350 g (0.77 Lbs) of Fiber Balls.

Maximum Water Temperature: 35 °C

Ingress Protection: IPX4

Detailed Parts List

Before installing your product, take a moment to check its contents and familiarize yourself with each spare part.

For parts orders, please indicate the filter model and part number.

Installation Instructions

Tools Required: 1 Phillips screwdriver.

Pump Location and Mounting

• The system must be installed on a stable, vibration-free surface.
• Install the pump away from weather, humidity, rain, and frost.
• Ensure the pump is in an accessible and well-lit area for maintenance.
• The pump must be installed to allow for proper air circulation to cool the motor. Do not install in a damp or unventilated area.
• 2 or more adults are recommended for assembly.
• The appliance is intended for domestic use only.

Pre-filter Installation

Ensure the pump gasket is in place. Screw the pre-filter (19) onto the pump inlet (see diagram 10).

Tank Installation

1. Place the tank on the chosen location.
2. Place the tank on its support (see diagram 11).

Central Collector and Sand Filling

3. Screw the central collector (7) onto the strainer (8) clockwise (see diagram 11.2). Ensure the strainer is properly seated at the bottom of the tank and the central collector is vertical (see diagram 11.3).

Sand Filling

IMPORTANT: Use #20 silica sand or filter glass with a grain size between 0.45 and 0.85 mm and a uniformity coefficient of less than 1.75. Use only filter media recommended by the manufacturer.

NOTE: Before filling the tank with sand, ensure the strainer and central collector (7) are correctly assembled.

1. Cover the opening of the central collector with a cup or similar object to prevent sand from entering the collector (see diagram 12).
2. Pour the sand gradually to prevent the strainer from shifting. Use a third party to hold the collector centered in the tank (see diagram 13).
3. Fill the tank halfway to level the sand. Add a small amount of water to cushion the remaining sand to avoid strong impacts on the strainer (8) (see diagram 14).
4. Adjust the sand volume to be between the "MAX" and "MIN" marks on the central collector. If necessary, level the sand by hand (see diagrams 14 & 15).
5. Remove the cup (or similar object) covering the central collector.
6. Clean the top rim of the tank.
7. IMPORTANT: Ensure the central collector (7) remained centered in the tank before proceeding to the next step.

6-Way Valve Installation

ATTENTION: Improperly securing the cover to the tank can cause serious injury, material damage, or death.

1. Ensure the tank gasket (5) is properly in place (see diagram 16).
2. NOTE: Ensure no sand or debris remains on the gasket.
3. Slowly place the 6-way valve cover, ensuring the central collector fits perfectly into the valve cover (see diagram 17). Ensure the O-ring of the tank is properly seated between the upper groove of the tank and the groove of the 6-way valve cover. IMPORTANT: Ensure the 6-way valve gasket is aligned with the groove on the tank rim.
4. IMPORTANT: There are three hose connection ports on the 6-way valve. Ensure the outlet port (from tank to pool) faces the pool (see diagram 18).
5. Remove the bolt and install the clamp around the tank and 6-way valve, then replace the bolt and use a power screwdriver (not included) to tighten (see diagrams 18 & 19).

Motor Installation and Hose Connections

1. Place an L-gasket (11) on the pump outlet. Connect the transfer hose (13) from the sand filter to the pump outlet (see diagram 20).
2. Assemble the pump base to the tank support (see diagram 21.1). NOTE: Ensure the pre-filter inlet faces the pool.
3. IMPORTANT: Certain national regulations, particularly in the European Community, require the filter to be permanently secured to the ground in a vertical position. Check with local authorities for any regulations regarding above-ground pool filters. If applicable, the filter can be secured to a platform using the two mounting holes on the base (see diagram 21.2). The filter must be secured to a cement or wooden surface to prevent tipping. The mounting holes are 6.4 mm in diameter and spaced 196.5 mm apart. Use M6.4 (1/4") screws and nuts.
4. Place an L-gasket (11) on the suction port of the 6-way valve. Connect the transfer hose (13) to the inlet of the 6-way valve (see diagram 22).

Sand Filter Hose Connections

ATTENTION:

• The filter must be placed at least 3.5 meters (11.5 ft) from the pool.
• The filter outlet socket must be located more than 3.50 m (11.5 ft) from the pool.
• Always keep your filter as far as possible to prevent children from climbing on it to access the pool.

The 6-way valve has three hose connection ports.

1. Connect a hose (12) between the pre-filter suction and the lowest pool shut-off valve. Ensure hoses are securely tightened.
2. Connect the second hose (12) between the 6-way valve outlet and the upper shut-off valve (connected to the adjustable nozzle). Ensure connections are properly tightened.
3. The third connection port of the 6-way valve should be directed to a drain using a hose (not supplied). Remove the drain/waste plug (3) before connecting the hose.
4. The sand filter is now ready to filter the pool.

Hose Connections for INTEX Pools (32mm)

Connect hoses (12) to the pool's inlet and outlet fittings using "B" adapters (10722). The parts inside the frame are not included (available separately) and are shown here for assembly reference only. Consult your pool owner's manual for details.

Hose Connections for Other Pools

Hoses (12) to the pool must be connected using a screw-type hose clamp (not included). Tighten properly.

Usage Instructions

⚠️ ATTENTION: Always turn off the pump before operating the 6-way valve. Operating the pump with the valve in the "CLOSED" position can cause an explosion, serious injury, or death.

6-Way Valve Positions and Operation

Control Panel

Control Panel Description:

Timer Mode Operation

To operate the system in "TIMER" mode:

1. Activate Unit: Press the button. Code "00" flashes, indicating the unit is ready for programming.
2. Set Operating Hours: With "00" flashing, press the button to set desired operating hours (1-12 hours). The integrated timer will activate the pump at the same time each day for the set duration.
3. Lock Control Panel: Once the desired value is displayed, press the button until a "beep" is heard. This locks the panel to prevent unauthorized changes. If not locked, the system will lock automatically after 10 seconds.

The sand filter pump will now filter the water and shut off automatically after the set operating hours.

Adjusting Operating Time: If necessary, press the button until a "beep" is heard to unlock the keypad. The programmed time will flash. Repeat steps 2 and 3.

Standby Mode and Memory: At the end of the cycle, the LED displays "00". The system enters standby. After 5 minutes, it enters energy-saving mode (display shows "."). The system will automatically restart within 24 hours.

To view preset timer time: When the pump is running, press the button. The preset time will flash for 10 seconds, then the display returns to the remaining operating time.

Manual Mode Operation

To operate the system in manual mode (without the "TIMER" function):

1. To use the pump without the timer, press the button to turn on the pump. Then press the button until the LED displays "FP", indicating the timer is off and the pump is running continuously.
2. To turn off the pump, press the button again.

Initial Use and Backwashing

Before any operation, ensure all hoses are connected and tightened, and the sand is present in the required quantity.

The system must always be connected to a grounded outlet protected by an RCD.

1. Turn both handles counter-clockwise until they lock. This opens the valves to allow water into the sand filter.
2. Purge Air: Ensure the drain/waste outlet plug on the 6-way valve is removed. Orient this outlet towards an appropriate drainage area. Turn the 6-way valve to "N" position and unscrew the air purge (35) above the motor (see diagram 29). When water starts to exit the air purge, close it.
3. BACKWASH: Ensure the drain/waste outlet plug on the 6-way valve is removed. Orient this outlet towards an appropriate drainage area. Press the 6-way valve and turn it to the "BACKWASH" position (see diagrams 24 & 30). IMPORTANT: To avoid damaging the 6-way valve, always depressurize it before turning. Always turn off the pump before changing valve positions.
4. Press the button to turn on the system, then press the button to set the operating hours using the timer (refer to the "Using the system in timer or manual mode" section for details). Water flows from bottom to top through the tank and exits the waste/drain port to directly expel impurities. Backwash until clear water flows from the waste/drain outlet.
5. NOTE: When "00" flashes on the LED screen, the unit is in standby mode and the pump will not run. An initial "BACKWASH" is strongly recommended after adding or replacing sand to remove dust, impurities, or small particles.
6. Turn off the pump, turn the valve to the "RINSE" position (see diagram 25).
7. Turn on the pump for about one minute to resettle the sand after a "BACKWASH".
8. Turn off the pump, turn the valve to the "FILTRATION" position (see diagram 23).
9. Turn on the pump. The system operates in normal filtration mode. Let the pump run as needed to restore clear water, but no more than 12 hours per day. For initial startup, it is recommended to set the system for a longer timer duration or "FP" for continuous operation.
10. Note the service pressure reading on the manometer when the filter media is clean.
11. NOTE: During initial system startup, regular "BACKWASH" cycles may be necessary. As the filter traps dirt and impurities, pressure will rise and flow will decrease. If no vacuum is connected and the manometer is in the yellow zone, it's time to "BACKWASH". Refer to the "BACKWASH" section. When a vacuum is connected, water flow tends to decrease and pressure to increase. Disconnect the vacuum and check if the manometer returns to the green zone.
12. Monitor the manometer and check weekly that the inlet and outlet ports are not obstructed. If the manometer is in the yellow zone, it is time to "BACKWASH".

Pool Operating Times

INTEX Pools Operating Times (Without Saltwater Ecosterilizer)

This table shows the average operating times for the sand filter based on pool capacity and model.

NOTE: The timer setting includes an additional 10 minutes compared to the actual setting.

Other Brands Operating Times

This table shows the average operating times for the sand filter based on pool capacity.

Maintenance and Chemical Products

Pool water must be maintained regularly. Your filter and proper chemical control will help maintain a good hygiene level. Consult your retailer to choose your chlorine, anti-algae, and other products.

• Keep chemical products out of reach of children.
• Never pour chemicals into the pool while it is occupied. These products can cause skin or eye irritation.
• Daily monitoring of pH and water treatment is necessary, as is the addition of chlorine, anti-algae products, and pH monitoring, both when filling the pool and regularly during the usage period.
• When first filling the pool, the water may be dirty and require more products and filtration time. Never swim in water with an incorrect pH. Consult your retailer.
• Your children will likely splash and spray water on the ground. Be aware that chlorine can damage your lawn. Consider this when installing your pool. Some grasses may grow under the liner and damage it.
• The operating time of your filter depends on your pool size, weather, and usage time. Vary the operating time to find the correct setting.
• European standard EN16713-3 provides additional information on pool water quality and treatment, which can be found at: www.intexcorp.com/support.

⚠️ ATTENTION: A high concentration of chlorine can damage your pool liner. Always follow the recommendations of chemical product manufacturers, health hazards, and danger warnings.

Long-Term Storage & Winterizing

⚠️ ATTENTION: Allowing water to freeze will cause significant damage to the sand filter and void the warranty.

1. Before draining your pool for winterizing or moving it, ensure the water is directed to a safe location, away from homes. Familiarize yourself with local regulations regarding pool water disposal.
2. Turn off the appliance and unplug the power cord.
3. When the pool is empty, disconnect all hoses and remove the shut-off valves and strainers from the liner.
4. Unscrew the sand filter drain plug (9) to empty the tank. This plug is located at the bottom of the tank.
5. Separate the pump from the tank base.
6. Allow the sand filter parts and hoses to dry as much as possible.
7. Apply a layer of grease to the following gaskets for winterizing:
   • L-gasket (11).
   • O-rings (22).
   • Gaskets for the clamp rings (23).
   • Flat gasket (25).
8. Press the 6-way valve handle and rotate it so the pointer indicates the "N" position. This allows water to drain from all valve chambers. Leave the 6-way valve in this inactive position.
9. It is recommended to store the dried parts in their original packaging for optimal storage. To prevent condensation or corrosion, do not wrap or cover the motor with plastic bags.
10. Store the pump and accessories in a dry place. Storage must be frost-free.
11. Cover the tank with a tarp or plastic to protect it from the elements.

Troubleshooting Guide

Pool Water Issues

Aquatic Safety Rules

Water sports are fun and relaxing, but they also involve risks of injury and death. To reduce these risks, read and follow all instructions on products, packaging, and manuals. Be aware that instructions and warnings cover the most common risks, but others may exist.

For your safety, familiarize yourself with the following warnings and those specific to each national organization:

• Constant supervision is required. A competent adult should be designated as a "lifeguard" or supervisor, especially when children are in or around the pool.
• Learn to swim.
• Take time to learn basic first aid.
• Inform anyone responsible for supervising swimmers about the existence of safety systems such as barriers, locked gates, etc.
• Inform all pool users, including children, about emergency procedures.
• Use common sense and reason during water activities.
• Supervise, supervise, supervise.

Limited Warranty

Your sand filter has been manufactured using high-quality materials and technology. All Intex products have been inspected and are free from manufacturing defects. The warranty applies only to the sand filter and listed accessories.

This limited warranty is in addition to, and not in replacement of, the legal warranty. Where this warranty contradicts local rights, local rights take precedence. For example, European laws provide statutory rights in addition to those offered by the limited warranty. For more information, consult the European website: http://ec.europa.eu/consumers/ecc/contact_en/htm.

The terms of this limited warranty apply only to the original purchaser. This limited warranty is non-transferable. The warranty period is valid for the duration indicated below, starting from the date of original purchase. Keep your original sales receipt with this manual, as proof of purchase will be required and must accompany claims; otherwise, the limited warranty will not be valid.

Sand Filter Warranty: 2 years

Hoses, Shut-off Valves, and Fittings: 180 days

If a manufacturing defect appears within the period below, please contact the appropriate Intex Consumer Service listed in the "Authorized Service Centers" document. If you return the defective item as instructed by the After-Sales Service, the After-Sales Service will inspect the item and verify the claim's validity. If the item is covered by the warranty terms, the product will be repaired or exchanged for a similar product (at our discretion) free of charge.

No additional warranty (other than legal) will be applied. In no event shall INTEX, its agents, and/or employees be liable for direct or indirect damages resulting from the use of the Sand Filter (including product manufacturing). Some countries or jurisdictions do not allow the exclusion or limitation of incidental or consequential damages, so the above limitations or exclusions may not apply to you.

This limited warranty does not apply under the following circumstances:

• If the Sand Filter is subject to negligence, abnormal use, accident, malfunction, incorrect voltage, or contrary to the instructions for use, maintenance, or storage;
• If the Sand Filter is subjected to damage by circumstances beyond INTEX's control, including but not limited to normal wear and tear, and damage caused by exposure to fire, frost, rain, flooding, or any other external environmental factor;
• For parts and components not sold by INTEX; and/or
• Unauthorized modifications, repairs, or disassembly of the Sand Filter by anyone other than personnel from INTEX SAV centers.

Costs resulting from pool water loss, damage caused by chemical treatment products or water are not covered by this warranty. Injuries or material damage are in no case covered by this warranty.

Read this manual carefully and follow all instructions for proper use and maintenance of your Sand Filter. Always check your equipment before each use. The warranty may be voided if instructions are not followed.