Hi everyone and thanks in advance for replies to my question, I have installed about 60ft of 1" main line reduced down to a 1/2" manifold and two 1/2" feeder lines about 25' long. I have pressure tested the line to 15' of air pressure and it lost 1 1/2' over-nite,18 hrs. is this
exceptable. I have read on other sites that most inspectors require 15' of pressure to hold for 30 minutes, is this right?
Oh and bye the way this is for low pressure propane, 11" wc