How To Replace a Gerber Diverter Stem

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In this video I show you how to remove and replace the the center diverter stem in a three valve shower body.

If you have never attempted a diverter stem replacement then I suggest you also check out my video series titled three valve shower body repair. You can watch them for free here:

Three Valve Shower Body Repair - Part 1:
http://www.bobsplumbingvideos.com/thr...

Three Valve Shower Body Repair - Part 2:
http://www.bobsplumbingvideos.com/thr...

I walk you through the steps on removing the hot and cold water stems along with some tool suggestions for getting the job done. The function of the diverter stem is sole to direct the water to the shower head or the tub nozzle and with this repair you won't have to shut off any water to the fixture itself. Just make sure the hot and cold water sides of the shower body are in the off position.

To remove the stem you simply follow the same instructions outlined in my video "three valve shower body repair" where I demonstrate the removal of the hot and cold water stems. As you can see this stem looks a little different and has a two-way function. When the stem is pulled back away from the seat the water will travel through two openings in the stem that direct the water up to the shower head. When the washer is closed against the seat the water travels full flow down through the tub nozzle. There is also a seat inside the body that should be replaced when you install a new stem, don't forget to make sure the stem is in the fully opened position before placing in back into the body. If it's in the closed or halfway position, you'll chance to damage the stem and or shower body.

In a world of new style single lever pressure balanced tub and shower faucets, the three-valve shower body still exists and when they fail, repairs have to be made. I hope the video sheds some light on the subject of replacing the stems and seats in these style shower bodies

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Happy Plumbing!
Bob