My faucet was leaking so I replaced the stem valves, but it still leaks. I was wondering if some how the rough-in (right terminology?) valve could have broken inside? I'm really hope not, because there's no way for me to reach it without cutting into my wall.
To make it clear, please see the instructions for the assembly of my faucet. The part I'm wondering about is number 2 in Step 2.
http://www.americanstandard-us.com/assets/documents/amstd/install/Install_4240.pdf
A little background: we found the faucet leaking a considerable amount after returning from a short trip. It had never leaked or dripped before this and the temperatures didn't get anywhere close to freezing over the weekend.
Also, I took one of the old stem valves, put a little purple ink on the surface the washer is supposed to sit on, and hand tightened it. After removing it, the washer was covered in purple ink, so I'm fairly certain the old and new stems were seated properly.
Best Answer
If you mean leaking from the tub spout I don't think that's likely. In those ceramic disc cartridge valves all the turning on and off is contained in the valve. There's no mechanical force applied to the rough-in portion to wear it out.
Are you sure all the o-rings on the cartridge are in place and intact?
I think your best bet would be to call American Standard to help diagnose the issue.