Grohe Valve Cartridge Replacement

6 years ago

last modified: 6 years ago

Stiffness of lavatory valve operation led me to remove the handle and notice mineral deposits and corrosion inside handle (see photo) and elsewhere. Because water should not be getting in there, I concluded there must be a leak associated with the cartridge and bought a replacement. Looking to replace it and turning the nut (C in photo) with a wrench met with resistance after some stiff movement. I was not able to find a detailed drawing showing the parts assembly and did not wish to force anything. I noticed there is a larger black plastic nut (B in photo) that looks like it might prefer a special socket tool. Is B limiting the rotation of C? If it seems like a dumb question, please bear in mind that I have no picture of how the valve operates or goes together. A few hints on this repair from someone experienced with these parts would be most welcome.

Grohe Talia Valve handle internal corrosion and deposits

Grohe Talia valve with deposits A and two nuts, B and C.

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Comments (3)

PRO
StarCraft Custom Builders
6 years ago
Take a picture of your faucet (unless you happen to already know the model). Call Grohe customer support. They will instruct you on how to send the picture so they can figure out the model. Once they have the model they will send you instructions on how to remove and replace the cartridge.

Can'y tell for sure from the photo, but this may be a 1/4 stem cartridges. If so, this video may help.
scibidr thanked StarCraft Custom Builders
scibidr
Original Author
6 years ago
Thanks, StarCraft for the tips. After reviewing the video, I concluded that the plastic nut B secures the valve barrel to the vanity deck. I already have the replacement cartridge because I knew the valve model from the spec when we built the house. From reviewing the web page, I didn't think the manufacturer would offer a homeowner the support you mentioned, but I'm glad to know its worth trying. First, I will use a bit more muscle on the wrench, maybe work the cartridge back and forth if that's whats needed to loosen it up.
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PRO
StarCraft Custom Builders
6 years ago
I know what you mean. Grohe customer support sucks, but it's all we have.