Hi there Looking for a formula for pressure testing with water. Think there is one where you have a known test volume(aleadt filled with water) I have start pressure and end pressure but trying to find a formula to give the voloume of water that would have to be added to the closed system to...

I am adding a gas line from my stup up to the range. Presently there is an existing valve a short nipple and a tee with the stup up coming out of the top of the tee. I intend to replace the tee with a cross fitting and add a short nipple and a valve to the stub up to the range then reduce the...

I just has a gas line installed for a gas stove. They performed the pressure test and the inspection was approved. The gage was left on and 4 days later the pressure has dropped to 4lbs. Is this a problem? The gas line was ran outside along the foundatio, then puched through the wall into the...

I am pressure testing the drain and vent stack in a new construction and want to know if there is any initial drop in pressure and is 5psi enough to test the system with.Also how long should it stay pressurized.

Who should I call for pressure testing for gas leakage in my house in Seattle, WA Thanks.