I don't know how long you have lived there but I would say you're vented
somewhere. If the septic tank system wasn't vented it would backup. I've
seen this happen. I had a house build once and one of the subcontractors
didn't put a trap in the basement shower drain. I was getting odors in the
shower. The primary contractor didn't want to tear up the concrete shower
floor. He went to the septic line just outside the house and put a trap
between the house and the septic tank. When I ask how the system would be
vented he said it would vent through the fielding. I thought this was wrong
but I let him put the trap in. Within a week I had raw sewage in my
basement shower. I went out dug up the trap and drilled a hole into it on
the tank side. You could hear air rush out, then the sewage ran down to the
tank. I put a tee on the hole I drilled, ran it above ground level and
covered up the trap. No more trouble.
So if you are not vented at all you should be having REAL problems. Some
'handymen' run vents into an attic and let it end there. Not code, and not a
good idea. If you're in doubt run a vent line. You're venting the septic
tank, so no traps can be between the tank and the vent. If the system was
installed correctly each toilet would be vented (to a primary line). If not
you system could vacuum lock and no water would move.
"Brian Barnson" wrote in message
news:6vJYc.270542$J06.260383@pd7tw2no...
I recently spent a few days helping a friend install vents in the plumbing
drain system in a log house he's building. I'd never really thought about
venting, so when I got home I checked out my venting and discovered that I
don't have any. This place was renovated, or being rerenovated, by a
couple
that went broke and we bought it from the bank so I don't know what the
plan
was. There's about 35' of 4" ID pipe to the outside wall and on to the
septic tank. All the drains come together within 5' of the other end of
the
pipe. I can easily put a vent pipe through an outside wall but I'm
wondering if it should be at the septic tank end or the other end.
Brian, in Cedar
|