View single post by Jensen Healey
 Posted: 02-13-2008 12:55 am
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Jensen Healey

Joined: 03-11-2005
Location: San Anselmo, California USA
Posts: 983
When we pressure test plumbing pipes we use 4psi. Believe me, when a cap blows off there is a loud pop!

Water cannot travel in the tiny crevices where solvent can. I would start with about 2psi and use a spray bottle of soapy water if it doesn't hold pressure. When the tank starts bulging you'll know it's enough pressure.