On Oct 5, 2:24*pm, aemeijers wrote:
wrote:
dont know much about septic tanks but do know about my uncles built in
swimming pool, it was beautful.

uncle had high water table, and hole filled with water during pool
install.

hge was warned to never pump out pool for extended period.

he infornmed new owner who did that one winter the pool raised right
out the ground and was ruined,

perhaps thats the issue here?

It can happen to ANY container underground, that is lighter than the
same cubic feet of water would be, if the saturated ground gets soft
enough. Septic tanks, utility vaults, coffins, pools, empty oil tanks
(sometimes even half-full ones), whatever. There is a reason New Orleans
graveyards are above-ground. It is also a reason you don't pour a
basement slab until the house is on top of the foundation walls, unless
you are damn sure the water table is WAY down there. (You don't backfill
the walls till house is dryed in and the slab is poured either, if you
are smart. Hydrostatic pressure can be a bitch.

--
aem sends...

Now, you should know better that to insert accurate, true information
into these discussions

Harry K