These instructions apply to the 'diverter cartridge' that diverts the water to the wand. It is the smaller of the two valves and not to be confused with the larger 'mixer cartridge' that turns the water on/off and adjusts the temperature.
The water supply valves need not be shut off to make this repair but do NOT open the mixer valve until the repair is complete!
Use properly adjusted pliers to remove and replace the retaining ring. Improperly adjusted pliers and/or too much grip force can distort the ring out-of-round.
- Unscrew and remove the lever
- Use a 2.5mm hex key to loosen the set screw
- Pull the knob from the cartridge
- Unscrew and remove the retaining ring.
- CAUTION: be prepared for the water that is standing in the spout to drain out when you pull the cartridge. Pull the cartridge from the faucet body.
- Make sure the 3- loop seal on the face of the cartridge came out with the cartridge and is removed from the faucet body
- To facilitate insertion, the O-ring on the new cartridge may be lubricated with NSF-61 certified silicone (plumber's) grease
- Make certain the seal is in place
- There are 6-holes in the bottom of the socket in the faucet body. The two pins on the cartridge must be aligned vertically with the two, smallest diameter, blind holes. Once the pins are aligned, press the cartridge fully into the faucet body. The O-ring will resist going into the body because it is a close fit. It will feel "springy" due to the O-ring engaging the face of the faucet body. DO NOT strike the cartridge to force it into position. The cartridge must be held straight. Tilting it up/down or left/right will prevent the cartridge from seating properly.
- Screw the retaining ring into the faucet body until it has completely bottomed out. The retaining ring MUST be fully seated. Continue tightening the retaining ring until less than one thread, and as little as no thread, remains visible. If you're having trouble seating the cartridge: tighten the retaining ring, back it off 1/2 turn, wiggle and push the cartridge, tighten the retaining ring. Repeat as necessary until the retaining ring is fully seated.
- With the set screw UP, place the knob onto the diverter cartridge
- Very firmly tighten the set screw
- Screw the lever onto the set screw
- If, after installation, water comes from both the spout and the wand at the same time, the cartridge is not fully seated.