Best way to test for cracked water lines
First off I have to acmit to being paranoid about water leaks. Water (in the wrong places) seems to be the biggest destroyer of a good RV, so I am paranoid about it. Maybe too paranoid. We camped t...
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aruba5er wrote:Yup, I have one of those air-over-water systems. No problem pressurizing the system, even easier for winterization.
you can't build pressure with a diapharm pump. when it runs dry it's dry. Those pumps are not compressors. Unless you have a really old system that had an air compressor. Haven't seen those since the mid 70's
If you think there may definitely be a leak, you should pressure test the system with air after draining the system. If it's only a possibility that there is a leak, fill the system with water or RV antifreeze and observe for leaks. A cracked fitting or bursted pipe from freezing will gush water (or spray it), not just dribble or drip.
I have all new plumbing and rebuilt all of the supply valves in my rig (except the toilet). I would bet that if I did a "hold pressure" test, I would lose some pressure after a few hours. It is the nature of the beast.
