@ moms for the holidays…she has 1/2inch PVC from water heater to lavatory, hot and cold, both 1/2 inch pvc fittings to valves are cross threaded, instead of replacing the PVC fittings I want to sweat copper from water heater, and cold feed to lavatory what fitting do I need to go from PVC to [...]

Several times a day we hear what sounds like a bullhorn coming from our plumbing. Has anyone heard of this? We were told that it was air in the line and not to worry, but it is quite loud and not going away. Any ideas on how to get rid of it?

I can’t find any good diagrams/photos on basement plumbing, below slab. I know about vents, slopes and tying in. I just want to see diagrams. Thanks in advance.

i would like a ballpark figure for a plumber cost in australia. this is research to find out how much a plumber costs to do out a bathroom, with your shower , bath and toilet, the basics from scratch. and if possible, just how long all that might take.