commercial

Plumbing Forums

Help Support Plumbing Forums:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
  1. G

    High air pressure coming up sink(commercial)

    Larger 2 story 40+ year old building. I am the maintenance person for property. It has a vent outside, (attached picture) although not much higher then the sink inside, in fact now that I think about it, it's probably lower. I replaced the existing vent with that black one. The main drain...
Back
Top