Septic tank is *always* full of water. Added water (from house)
flows out to the leach field where it soaks into ground.
If your ground is saturated from rain, excess from house may either
bubble out to surface or backup.
this is a local item subject to your location and specific installation
and its age and condition. just call your local plumber and septic tank
pump out service to get a pumpout, testing, and diagnosis. ask them for
regular care and feeding advice.
One of my neighbors called in the County Health Dep't to inspect his
neighbors septic system when he smelled an odor from it. The Health Dep't's
"better idea" was to condemn it and require the old guy to come up with
several thousand dollars to replace it with a "mound" system. Plus he had
to pay $400 for a land survey to garantee the installer that it wasn't being
placed on another neighbors land. By the way, the city told the county
health dept that they intended to run a sanitary sewer line to the house in
a year or so but the health dep't said "fix it right now".
On Tue, 07 Feb 2006 15:23:34 -0800, A Veteran for Peace
It's not the septic tank that fills up. It's always full. The rain
water saturates the leach field. When that happens, water flowing
into the septic can't drain into the ground because the ground can't
take any more water. You need to keep the rain water away from the
leach field. I.E. don't let it flood the area. Provide good drainage
so you never have pooling over the leach field.
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