pipe sizing

I'm helping a friend with some home improvements in Los Angeles and the gas line feeding the pool heater has me a little concerned. The pipe is sitting directly on the ground at the base of the concrete block wall that is the property fence and the concrete walkway along the side of the house...

Hi - I'm putting in new city water service (tired of the well). My home is ~400 feet from the 16" main with 60-65psi. Originally, I was thinking of going with a 1" tap & meter hooked to a 1 1/2" line to the house. I only have 27 fixture units. Only 2 adults live in the house and there is...

I have built a two-story garage apartment, and I am ready for running DWV pipes. I have five fixtures, which I believe are called branch intervals, so pretty sure a vent stack is required. Most of my runs, except possibly the kitchen, which is in a wall 5 feet away, are under the minimum length...

I’m doing a job that requires 8 new commercial motion sensor toilets and 8 motion faucets. The pressure from main water line coming to the building is around 45psi to 50psi. I am to run 1” water lines for max pressure. I feel I may need more pressure running these commercial toilets. A pressure...