STEP system discharge to existing MH - Gas problems?
STEP system discharge to existing MH - Gas problems?
(OP)
I'm doing an alternatives analysis to extend sewer service to approximately 30 customers. One of the options I was asked to investigate is a STEP system either tieing into an existing gravity sewer MH or providing a small package plant.
My question: since the STEP collection system is transporting liquid that has had a day or few detention time in a septic tank, will this be likely to cause gas problems once we discharge to the MH?
Any thoughts or expirences here?
Thanks,
Mike
My question: since the STEP collection system is transporting liquid that has had a day or few detention time in a septic tank, will this be likely to cause gas problems once we discharge to the MH?
Any thoughts or expirences here?
Thanks,
Mike





RE: STEP system discharge to existing MH - Gas problems?
RE: STEP system discharge to existing MH - Gas problems?
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and the 2008 Water Environmental Federation Alternative Sewer Systems Manual of Practice FD-12, Second Edition
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Basically, septic tanks are vented through the house that they serve via the existing plumbing. Just try to minimize splashing at the point of connection. You can use use "t-lok" on the manhole, but this maybe excessive.
Clifford H Laubstein
FL PE 58662
RE: STEP system discharge to existing MH - Gas problems?
If the mh is located close to something, you might be take more precautions.
If you are in the south, the warmer temperatures may make this more of an issue.
RE: STEP system discharge to existing MH - Gas problems?
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: STEP system discharge to existing MH - Gas problems?
I recently worked with a RV park that has a older section with 60 RV sites that flowed to a large three chambered septic tank and then gravitied to a lift station, via a standard gravity collection system that picked up an additional 90 RV sites. No odors at the downstream manholes and no aroma at the central lift station.
Clifford H Laubstein
FL PE 58662