How Do I Install or Replace The Integrated Diverter For My Single Handle Tub / Shower Faucet?

This article will explain how to replace an integrated diverter of a single-handle tub/shower faucet.

Please note that the images are for reference only. The part shown in this article may differ from yours, but the information below is still relevant.

To replace the diverter, you must:

1. Remove the old diverter
2. Install the seat and spring on the diverter
3. Install the new diverter
4. Test for leaks and re-install the faceplate

Please Note: Before doing any work on your faucet, please shut off the water supply to the faucet.

Once the water is turned off, you are ready to begin.

Step 1 - Remove the old diverter

• , followed by the faceplate.
• After the faceplate is removed, the main shower cartridge and the diverter cartridge will be visible.

• The diverter can now be removed. To do so, use a pair of adjustable pliers to remove the retainer nut. Turn counter-clockwise to remove it.
• If you cannot access the diverter with adjustable pliers, you can use a deep wall socket wrench. The size of the socket wrench needed depends on your valve model. If you have the same valve as shown in the below image (Danze by Gerber shower valve D113000BT with diverter part number A603819), the size is a 29mm deep wall socket wrench. Contact us if you are uncertain about your shower valve model or if you have a different shower valve model and diverter.

• Once the retainer nut is removed, pull the diverter out of the faucet body to remove it.

Step 2 - Install the seat and spring on the diverter

• Make sure you have all the required parts. The required parts are (1) the diverter, (2) the plastic seal, (3) the rubber seat, and (4) the spring.

• Insert the plastic seat into the rubber seal.

• Insert the spring into the diverter. Note that the larger end of the spring is inserted first.

• Install the rubber seal and plastic seat on top of the spring.

Step 3 - Install the new diverter

• Insert the diverter into the faucet body.

• To properly orient the diverter, rotate the cartridge until the opening at the end of the diverter matches the picture shown below.

• Install the thin washer onto the diverter.

• Install the retainer nut.  To avoid over-tightening the retainer nut, hand tighten it and then use the adjustable pliers or socket wrench to apply a quarter turn. Approximately 10-14 lbs of torque are required to properly install the retainer nut.

Step 4 - Test for leaks.

• Once all of the parts are re-installed, turn on the water supply for the faucet and let the water run for approximately 10 minutes. If you notice that water is leaking from the diverter, tighten the retainer nut and test again.