we have one shower in the house. (I had the cesspools checked and the cesspool guy said they're not the problem)
It doesn't smell until you start the shower then this acrid smell comes out of the drain that's pretty awful then it goes away after about a minute.
The cesspool company said maybe it's a venting problem. My plumber said it couldn't be something about the trap and how it's situated vis a vis the vent( I didn't understand)
the plumber suggested pouring bleach down the drain that there was some stuff in there. It didn't help! The trap and the piping under the shower is new PVC.
Any ideas. I think it is a venting problem but the plumber doesn't want to get his A## over here. and my guess is worth nothing when it comes to plumbing
Thanks for any help
Barry