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How does a thermostatic valve typically break and be repaired?

Posted by DreamingoftheUP (My Page) on
Mon, Mar 17, 14 at 10:17

I'm considering using thermostatic/volume/diverter valves in my bathroom. In my second bath, I have a Moen pressure balancing valve. In 20+ years, the only problem with it was a slow leak one time which I simply fixed by replacing the cartridge.

How do thermostatic valves break or wear out? What are the symptoms - only cold water, only hot water, or? How are they repaired - replace a cartridge or the entire valve body?

As reference, I will use a major brand (Delta, Moen, Grohe, Kohler). Am leaning towards Kohler.

Follow-Up Postings:

RE: How does a thermostatic valve typically break and be repaired

With the Delta shower control I installed last year, you buy the universal housing that gets installed in the wall and then you buy the cartridge and handles and trim separately and can put either a thermostatic or pressure balancing control in the same universal housing.

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