sounds kinda boring i will admit.
but this service it about 700', with a return.
up here, we have to have a two line water service. supply & return.
if there is no call for water (open faucet), the supply water is circulated back to the circulating water main. this prevents freezing in perma-frost.
anyways, return line is holding air. this is good right? yes, it is.
supply line, not so good. it won't hold 1 psi.
in other words, there's a big leak,...................or several little leaks.
i need a compressor that puts out more cfm so i can hear the leaks.
any useful ideas would be greatl;y appreciated.
after thought; gonna solder up 1" copper stubs with a cap and install them on the curb stops so i can rule out people touching the valves in each unit.