Chris Bryant wrote:
JimK-NY wrote:
Thanks. If I understand the manometer will show the drop in pressure but not the volume rate of leakage.
In a way it does show the rate- no drop from an 8" water column movement in 3 minutes means the leak is small enough to be inconsequential (some states call for up to 15 minutes- the time I use for testing). The trouble with watching the changeover indicator is that you have a volume of high pressure LP in the pigtails, which can keep the pressure up even with a leak.
Amazingly some people would rather guess than know.