For the past several months I've had an occasional leak from my second
floor bathroom into the front hall. After completely caulking the
area (thanks for all the great caulking advice on 12/29 and 12/30) the
Last weekend I opened the ceiling over the hall and was able to
actually see it happen. When my wife shut off the shower, a thin but
steady stream of water came down for about two seconds. I cannot
repeat the problem by opening and closing the valves or diverter,
which makes it difficult to know how to proceed. My wife says she
opens the diverter before shutting off the water. This is a three
handle system and it's around 30 years old.
Given all this information, is there a clue that I missed as to the
likely cause of the leak? Is the best course of action to remove the
splash panel and replace the mixing body along with valves and
diverter? I suppose it's also possible that the leak could be from
the hot or cold water feeds, or the lines to the shower head or tub
I'd suggest you first check the diverter valve's shaft packing gland (or
perhaps it's an O-ring seal).
I had the same sort of problem on one of our showers, and after changing
the diverter valve seal I made a little sheet brass chute fastened in
place with silicone caulking. That chute will direct any future leaks
from the same source out in front of the tiled wall, behind the single
handle valve's trim plate. That plate already has a notch on its bottom
to accept any leakage from the main valve shaft, whose seal's leakage
point is already in front of the tiled wall.
If the leak started some time ago, you'll likely see some
evidence -- limescale deposits and corrosion around that
area of the valve.
It was very apparent when I had a leaking valve stem on
a shower faucet last year.
| Malcolm Hoar "The more I practice, the luckier I get". |
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