- Nov 24, 2003
- Middle of Iowa
sounds like you have a leaky regulator. It is trying to do its job, regulating the main supply while there is flow, but when there is no flow, it is not sealing correctly, and allowing slow leakage from the high pressure source to your lines. My guess would be contamination that is obstructing the seat of the valve. Replace the regulator, and you should be good to go IMHO.