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Need help fixing my waste water drain pipes.
A few years ago I took ownership of my grandmother's house. For many years, the "man of the house" did repair work which usually goes like we all expect it to.
Anyway, I'm learning that my plumbing needs some alterations, and I'd like some advice before proceeding.
The particular section in question recieves water from the kitchen sink, and a sump pump which handles water from the washer, and basement sink.
I understand that sump pump connection to waste water drain is a no-no, so I'd like to fix that.
I installed the AAV in an attempt to get the kitchen sink to stop gurgling when the sump pump runs, although I now suspect the sound may be from water backing up the sink drain.
I'm thinking I'll have to enlarge the hole in the foundation wall, replace the cast iron T with PVC, and enlarge the line going toward the washer.
Washer gets an open pipe with a trap.
Can I still utilize the AAV, or should I install an entire vent? I believe the cast iron pipe going to the second floor is vented because the 2nd floor fixtures don't make any noise.
In going to install a new basement sink eventually. That gets it's own pump? How does that attach to the drain piping?