Quote:
| Originally Posted by jptaylor9 Even with flow stop closed, I've found it best to purge air from dil side before doing negative test. I found it leaked in otherwise. |
And don't leave it on negative too long. I'm not sure what the APV one is like inside but I have a reg diaphram in the Bob ADV and sucking that back down the pipe cannot be good for its life expectancy.
nigelH