I’m a bartender at a restaurant that is in an old gas station building. The floor drain that the sinks behind the bar drain into frequently smells like rancid meat farts, which is quite embarrassing when there are customers in the bar, but my boss has made no effort to try and figure out what the problem is.
I’m no plumber but have surmised that this is an issue with the floor drain either not having a p trap or it being messed up in some way. The trap couldn’t be dry from what I understand because it’s used frequently. I am wondering if there’s a way that this could be fixed that wouldn’t involve jack hammering the cement slab up, if I can determine whether there is a trap or not, etc. Currently I’ve been told to just dump bleach down the drain, which... doesn’t help.
Edit: There’s also an oatey sure vent air admittance valve, if that helps.