wrote in message
s.com...
I have an old pool that loses about an inch per night. We had it
caulked this year and that stopped the leakage for most of the summer
but toward the end it started to lose water again.

If the caulk stopped the leak, that should be a big clue. The leak is
somewhere they caulked. Letting it leak till it stops is not a bad idea
to locate the leak.

Bob