Ever since I had This American Standard Williamburg shower control valve I get a terrible water hammer at comfort tempetures. My friend the plumber who installed it pulled the Pressure balance valve out and inserted some plastic shims to block something that may be the anti-scald feature and the problem went away. 7 years later the water hammer retrned and i bought a new Pressure balance valve and Cartridge cycle valve hopeing a possible new design would elimate the water hammer. No luck so I re-straped all the piupes both in the walls and in the attic with no luck again. PS my plumber has passed with his knowledge , do you have any suggestions ?

I think fitting of your shower is not proper. You have to fit it properly if you can or you can call a nearest Plumber to solve your problem.

Could be a chunk of scale in the valve. Need to turn off water supply and take valve apart. If nothing is found, turn water supply on to give line a 'quick' flush and turn back off. If this does not help, you probably have an obstruction somewhere in the hot supply line and a plumber may be needed unless you are handy. Good luck.

That is normal with that faucet.

Turn Hot Temperature down lowerthan current setting. Make sure that Heater operates properly before using. A defective temp sensor can SCALD and BURN. What TYPE of Terrible SOUND? Do you have anyone tht is the least bit mechanical to observe and direct you to the right source. IF your husband enjoys cold showers this sounds like an opportunity to suggest that with WARM baths the two of you can have some Peaceful time! And both come out clean!

I'm not aware of any problems with non moen replacement parts being the cause for a water hammer problem. Start with the simplest and cheapest correction which is using a moen replacement cartridge. If the water hammer persists then you may have to install a water hammer arrester in the plumbing system. This is basically a shock absorber in the plumbing system to stop the effect of water hammer. An arrester will cost you around $10 to $15 at your local plumbing supply shop. If you are not comfortable soldering copper then you will want to hire a licensed plumber to complete the work for you.

I had the same type of problem with an older toilet in my house. It developed a water hammer when it shut off after filling the tank. I replaced the fill valve with a generic universal replacement for about $10 and it stopped. Again sometimes the simplest fix will work. Let me know how it works out.

It sounds like you have a problem called water hammer. When you shut off a fixture the pipes vibrate loudly or hammer. It is usually associated with one or more fixtures within the home. The easiest way to fix this is to install a water hammer arrester. Check with you local hardware store. If you are not comfortable with soldering copper you may wish to call a local plumber to install the arrester within the existing plumbing system.

You will need the expertise of a Plumber, this is beyond the scope of this forum.

sometimes there are orings or gaskets that get tore in assembly one of those may be bad,or if it is around the threds you might try wraping teflon tape around the thred once or twice.hope this helps

the iner threads must be stripped

Yes, there is a non-replaceable plastic restrictor device screwed into the tub spout outlet of the faucet body. It's purpose is to force the flow down to the spout for when the spout diverter is not closed. It keep water from rcoming out of the shower head when the tub spout is also discharging.

This is all fine and dandy where the water supply is clean without sediment. A co-worker of mine had one of these and old galvanized piping. After 3 years, it clogged up. She got a 'deal' from a handyman plumber to replace with an identical faucet. She will have the problem again. If she had spent the money to fix it right, she would have had a single handle mixing valve put in. If it clogs, you can just pull the cartidge from the body, clean it and put it back in. Now she will have to cut into the wall again, get the plumber to replace the 2 handled unit and patch the wall again.

Or, she could have the plumber drill out/remove the restrictor but then she might get water out of both outlets at the same time....."pay me know or pay me later"....repalcing the mixing valve with a scald prevention single handle valve (with remodel plate) is the BEST long term solution.

Fred Grable
Chicago
(Engineer and Ex-Master Plumber)