On Oct 4, 1:40*pm, "Steve Barker DLT"
wrote:
bs. * pure bs.

s

"PerryOne" wrote in message

...



On Oct 3, 1:12 am, "pat" wrote:
How much liquid should be left on the bottom of a septic tank after
being cleaned 1", 2" or more?

This is a wind up?
But, I will answer anyway.
A septic tank is always totally full of water.
When removing the sludge from the bottom (which can set quite firmly
they should use a pressure hose to break it up and then pump it out)
refilling with water.
The septic process relies on an anaerobic system of airless
decomposition, this means, that to work properly (and not to smell)
the solids must be under water at all times, this processes the solids
and certain toxins and turns them into various gases and water. 70% of
toilet is water anyway. So the *remainder is very small after process..
That is why a properly used septic tank will only need emptying every
20 or 30 years. The resulting liquid then moves away into the drain
field where it goes through an aerobic process that kills off the
remaining toxins and viruses. Before the liquid now pure water rejoins
the local aquifer and you drink it again.
As mentioned elsewhere, a tank must always be full, especially when
installing as the pressure of the backfill can damage the tank and as
written elsewhere, if not completely full of waste and water, in times
of flooding or high water level, the tank will pop out of the ground.
Perry- Hide quoted text -

- Show quoted text -

Go read 'aemeijers' reply and learn something.

Harry K