What stops a shower valve trim from leaking?

Hi All,

First post here. Thanks for all the great info on this site.

I have a question that may seem rather silly... I've just finished my first Kerdi shower and am now installing an American Standard Princeton shower trim kit.

Here is a picture:


Here is the schematic:


What stops water from leaking into the end of the cap, part 1. The escutcheon has a seal where the cap passes through it, but the opening where the handle joins is not sealed (it's covered by the bell shape end of the handle, but not sealed) Any water landing on cap could could run down and into the opening. Hope that makes sense.

Any insight is greatly appreciated.

Have a nice weekend,
Jeff

It would take quite a bit to get past the handle and the tube behind the handle.

Most brands seem to have a small gasket on the escutchen where the sleeve goes through. You could make such a gasket from some peel and stick weather strip foam

leak

Nothing will stop it from going in there, if it ever got that far, but what then? The place where it attaches to the body would stop any water from going any further.

Jeff Grant said:

What stops water from leaking into the end of the cap, part 1. The escutcheon has a seal where the cap passes through it, but the opening where the handle joins is not sealed (it's covered by the bell shape end of the handle, but not sealed) Any water landing on cap could could run down and into the opening. Hope that makes sense.

Any insight is greatly appreciated.

Have a nice weekend,
Jeff

Click to expand...

Crossed fingers?

Sorry to hear you picked Am. Std...
It's probably the least favored mixer among us plumbers here...

It is unlikely that it would as it usually doesn't get around corners...