I live in a condominium and have problem with the hot water shutoff
valve in the kitchen, under the sink. It is slightly leaky, for now
just a couple of drops per day. The next shutoff valve before it is
the main shutoff valve that covers several floors in the building.
Recently the maintenance people shut off the water for the entire
building, and I used that opportunity to replace the washer in the
valve. However, it continued to leak. It leaks along the thread that
is visible when the valve is fully opened.
It leaks more when it is open half-way.
Replacing the valve is expensive proposition. It would require to
shutoff water to other residents and it would be necessary to use
a torch to unsolder the valve and replace it with the new one.
Is there any substance (kind of a glue) that could stop such minor
The problem is not yet serious but it is annoying.
Thanks for any advice.