O-Ring Kit Replacement Instructions for U3720 and U3721

Indication:  The U3720/U3721ORINGKIT should be replaced when

• There is a leak between the vertical and horizontal sections of the spout swivel
• There is a leak out of the top pr bottom of the pop-up rod
• There is a leak from the base of the vertical section of the spout

Models Affected: U.3723, U.3724, U.3720, and U.3721

Tools Needed:

• Small Crescent Wrench
• Small Dental Pick, or Needle
• Paper Towel or Soft Cloth

Step 1.  Shut water supply to the faucet off: Important: Turn off the water supply at the faucet before starting. You can either turn off the main supply to the house or close the shut-off valves if the faucet is equipped with them. Then open the faucet again to empty it of residual water. Failure to do so could result in flooding or injury. 

Step 2.  Remove the Decorative Spike

• To remove the decorative spike, wrap the spike in a soft cloth or paper towel then carefully unscrew it using a crescent wrench

Step 3. Pull the Horizontal section of the spout off

Step 4.  Using a dental pick or needle, remove the two plastic washers and four o-rings from the swivel connection

Step 5.  Using the diagram, replace the o-rings and plastic washers

• Insert the new large plastic washer "A" into the bottom groove of the vertical section
• Push the 15/16" o-ring "B" into their grooves onto the swivel joint
• Push the two small o-rings "C" onto the decorative spike
• Place the small plastic washer "D" in the groove on the bottom of the decorative spike
• Grease the o-rings and push the horizontal section of the spout back on
• Hand tighten the decorative spike down, wrap in paper towel or soft cloth then tighten it with a crescent wrench, DO NOT over tighten the decorative spike

Indication:  The U3720/U3721ORINGKIT should be replaced when

• There is a leak between the vertical and horizontal sections of the spout swivel
• There is a leak out of the top pr bottom of the pop-up rod
• There is a leak from the base of the vertical section of the spout

Models Affected: U.3723, U.3724, U.3720, and U.3721

Tools Needed:

• Small Crescent Wrench
• Small Dental Pick, or Needle
• Paper Towel or Soft Cloth

Step 1.  Shut water supply to the faucet off: Important: Turn off the water supply at the faucet before starting. You can either turn off the main supply to the house or close the shut-off valves if the faucet is equipped with them. Then open the faucet again to empty it of residual water. Failure to do so could result in flooding or injury. 

Step 2.  Remove the Pop-up Knob

• Pull the pop-up knob up and while holding onto the pop-up rod unscrew the knob with your hand
• Wrap the Compression Nut in a soft cloth or paper towel and carefully unscrew it using the crescent wrench

Step 3. Pull the Horizontal section of the spout off

Step 4.  Using a dental pick or needle, remove the two plastic washers and four o-rings from the swivel connection