So I'll try to keep this short. I have three pits in my crawl space. Ejector pump pit, sump pump pit, and this one. I had plumbers replace our existing sump pump and while they were there I asked them about this pit. Guy in charge seemed to think it was a pit separate made for grease build up. Said back in the day some homes had those installed. He recommended I get a wet vac and suck up the gunk inside, fill it with gravel and throw a lid on it. So taking his advice, I grabbed the vac got in and started sucking it up. My Lord. The stench it released was the worst smelling thing I've experienced. Is it possible it's sewage? And that he's wrong? Should I seek another opinion? I sucked up most of the liquid, now all that's remaining is bigger clumps and solidified stuff. Pardon my ignorance also, I'm just beginning to learn about all of this. Thank you
Third pit in crawl space...
- Thread starter Ji1029
- Start date
Help Support Plumbing Forums:
Only way you could find out it's active or not have someone run fixtures one at a try the kitchen sink first were they mentioned grease when your sure nothing drains thru it seal it up
I’ll guess that it’s active or was recently if it’s stinking like you say. 
JG plumbing
Well-Known Member
Grease interceptors (I've heard) can produce the worst god awful stenches. I agree with what's been said so far.
I closed down a little ceasers pizza by opening their 3 compartment sinks grease trap.
People ran out gaging including the workers.
I tried to warn them.......they insisted.
I work for a large university in Boston,we have so many it takes 2 Saturdays,a co we use has a 2" hose about 200' long into a 1000 gal tankits spotless when they are done once you clean the 1st one you can't smell anything else
Jeff Handy
Pro Handyman, NOT A Pro Plumber
I bet they have separate bedrooms at home, spouses will still smell that stench on them a mile away.
