On 30 Sep 2006 18:58:13 -0700, "Tater" wrote:

I just bought an old farmhouse an am going thru all the repairs that
need to be done and have a puzzle.

when a large load of waster is flushed down the pipes (i.e. bathtub
emptying) the basement fills with septic gas. found a cleanout cover
rusted out (and now fixed) but still having the gas.

I'd say that when the water enters the tank, the gas gets pushed back,
after the fix it has dropped noticeably, but it appears it has now been
directed to the tank vent.

still some gas in basement, and a fairly good stinker from the septic
vent, have i been living in the city soo long to forget that this is
normal?

I remember a year or two ago, there was a poster who had a mansion
house with many rooms. He was complaining that his house often filled
with sewer gas fumes and smelled like sh*t..

The solution was simple. He walked thru the empty rooms once every
day or two and ran a cup of water in each drain and refilled the
'traps' which blocked the sewer gas.