On Mon, 21 Apr 2008 21:00:37 GMT, Calab wrote:

My pool is tens years old. As far I know it has never been acid
washed.

Draining and cleaning will give me a chance to inspect and repair any
damage.....

Directed to my reply...

Also be aware that draining a pool puts a whole bunch of new stresses
on it. Might want to Google it before draining.

Yes. I don't have a water table problem. My pool should not float out
of the ground. Good point!