Danco 80959 Universal Rundle UR-1 Cartridge Instruction Manual

1. Product Overview

The Danco 80959 Universal Rundle UR-1 Cartridge is a replacement component designed for single-handle faucets. This durable plastic cartridge is suitable for both kitchen and bathroom sinks, as well as tub/shower faucets. It is engineered for use with both hot and cold water applications and complies with the reduction of lead in drinking water act.

Danco 80959 Universal Rundle UR-1 Cartridge, full view

Figure 1: Full view of the Danco 80959 Universal Rundle UR-1 Cartridge.

2. Specifications

Brand	Danco
Model Number	80959
Material	Plastic
Color	White
Compatibility	Universal Rundle and Milwaukee single-handle faucets
Application	Kitchen, Bathroom, Tub/Shower
Special Feature	Lead Free
Item Weight	0.12 Pounds

3. Installation Instructions

This section outlines the general steps for replacing a single-handle faucet cartridge. Specific faucet models may vary, so always refer to your faucet's original manual if available.

Turn off Water Supply: Locate the shut-off valves under the sink or for the entire house and turn them off. Open the faucet handle to drain any remaining water and relieve pressure.
Remove Faucet Handle: Depending on your faucet model, you may need to pry off a decorative cap (often marked with hot/cold indicators) to expose a screw. Use a screwdriver (Phillips or Allen wrench) to remove the screw and pull off the handle.
Remove Retaining Nut or Clip: Once the handle is off, you will see the cartridge. There may be a retaining nut or a metal clip holding the cartridge in place. Remove this component carefully.
Extract Old Cartridge: Gently pull the old cartridge straight up and out of the faucet body. You may need to twist it slightly or use a cartridge puller tool if it is stuck. Note the orientation of the old cartridge for proper installation of the new one.

Close-up side view of Danco 80959 UR-1 Cartridge

Figure 2: Side view of the Danco 80959 Cartridge, showing O-rings.

Install New Cartridge: Insert the Danco 80959 Universal Rundle UR-1 Cartridge into the faucet body, ensuring it is correctly oriented. The tabs or notches on the cartridge should align with the slots in the faucet body. Ensure the hot and cold indicators (if present on the cartridge or faucet) are aligned correctly.

Figure 3: Top view of the Danco 80959 Cartridge, showing water inlets/outlets.

Bottom view of Danco 80959 UR-1 Cartridge with brass stem

Figure 4: Bottom view of the Danco 80959 Cartridge, showing the brass stem and hot/cold indicators.

Secure Cartridge: Reinstall the retaining nut or clip that holds the cartridge in place. Do not overtighten the nut.
Reassemble Faucet: Place the handle back onto the stem and secure it with the screw. Replace any decorative caps.
Restore Water Supply: Slowly turn the water supply valves back on. Check for leaks around the faucet base and connections.
Test Faucet: Operate the faucet handle through its full range of motion (hot, cold, off) to ensure proper function and check for any drips or leaks.

4. Operation

After successful installation of the Danco 80959 Universal Rundle UR-1 Cartridge, your single-handle faucet should operate smoothly. The handle controls both water flow and temperature. Moving the handle up or down typically adjusts the water volume, while moving it left or right adjusts the temperature from cold to hot.

Water Flow: Push the handle down to turn off the water, and lift it up to increase flow.
Temperature Control: Move the handle to the left for hot water and to the right for cold water.

5. Maintenance

To ensure the longevity and optimal performance of your faucet and the Danco 80959 cartridge, consider the following maintenance tips:

Regular Cleaning: Clean the exterior of your faucet regularly with a mild soap and water solution. Avoid abrasive cleaners that can damage the finish.
Check for Leaks: Periodically inspect the faucet and connections for any signs of leaks. Address minor leaks promptly to prevent further damage.
Water Quality: If you have hard water, mineral deposits can accumulate over time. Consider installing a water softener or regularly cleaning the aerator to maintain good water flow.
Avoid Overtightening: When reassembling faucet components, avoid overtightening nuts or screws, as this can damage the cartridge or other parts.

6. Troubleshooting

If you encounter issues after replacing your faucet cartridge, refer to the following common troubleshooting steps:

Problem	Possible Cause / Solution
Faucet Leaks After Installation	Cartridge not seated correctly: Ensure the cartridge is fully inserted and aligned with the faucet body slots. Retaining nut/clip not secured: Check that the retaining component is properly installed and tightened (but not overtightened). Damaged O-rings: Inspect the O-rings on the cartridge for any nicks or tears.
Low Water Flow	Aerator clogged: Remove and clean the faucet aerator. Water supply partially off: Ensure both hot and cold water supply valves are fully open.
Difficulty Adjusting Temperature	Cartridge misaligned: The hot/cold indicators on the cartridge or faucet body may not be correctly aligned. Recheck installation. Debris in cartridge: Turn off water, remove cartridge, and inspect for any debris.
Stiff Faucet Handle	Overtightened components: Loosen any overtightened nuts or screws. Mineral buildup: If the cartridge has been in use for a while, mineral deposits might be causing stiffness. Replacement may be necessary.

7. Warranty and Support

The Danco 80959 Universal Rundle UR-1 Cartridge is covered by a manufacturer's warranty. For specific warranty details, terms, and conditions, please refer to the documentation included with your purchase or visit the official Danco website.

For technical assistance, troubleshooting beyond this manual, or to inquire about replacement parts, please contact Danco customer support. Contact information can typically be found on the product packaging or the Danco website.

Note: Always ensure water supply is turned off before performing any maintenance or repair on your faucet.

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Danco 80959