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Old 12-02-2008, 10:03 AM   #1
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Shower valve question

I am in the process of retiling a small shower. It has a Moen single handle faucet that is about 30 years old, and has no obvious problems. As long as i have the wall open, should this be replaced ? I almost feel there could be more chance of leaks on a new installation. Anyone have any comments or suggestions ?


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Old 12-03-2008, 06:47 AM   #2
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Shower valve question

Are you sure it has never been replaced? IMHO, I always say that if you are going to have the wall open, now would be the time to replace the faucet. If it is in fact that old, parts are only going to get harder to find if you ever do need to repair it. Faucet parts eventually fail and require routine maintenance but a new one should last you many years before needing any work. Look in the clearance aisle at your home centers and you can often find nice valves for under $100, often not much more than the cost to replace the trim on your existing unit.


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Old 12-03-2008, 09:30 AM   #3
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Shower valve question

I'd replace it if for no other reason than to get a pressure/temperature sensing valve...the increased margin of safety would do it for me.

I don't fully agree with your assessment of new being more likely to leak. Do your leak testing before replacing the wall, turn the water on for a few days and if it holds, most likely you'll be fine. By the way operate the new valve if you can before closing the wall, to get the air out and to verify that it's working properly. I've had new ones leak outta the box, one took a new core and a different one had to be replaced. If it's installed poorly, then sure you'll have issues....but that's true for old or new.
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Old 12-03-2008, 11:40 AM   #4
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Shower valve question

I would replace it. You can test for leaks before the tile is installed. If possible, I would also install shut-off valves in an access panel on the other side of the wall. Doubt you have these now.
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