Turtle n Peeps wrote:
Old-Biscuit wrote:
Turtle n Peeps wrote:
:h
It's a spring loaded check valve. You can wiggle it all you want and nothing will blow. If it's just slightly off center it will leak just a bit and cause the pump to bump.
Yes it is a spring loaded check valve but what seals it is the o-ring on the plunger that is held closed by the spring.
Wiggling it, pushing in on it etc when there is line pressure can dislodge the o-ring and instead of reseating it it now will not seal at all.
That is why it's best to open a faucet and relieve line pressure first....well second. First would be to secure water source
:h
Street water pressure will open the check valve exactly like unseating/seating it with your finger; even more so. IOW's the street pressure will open that valve and dislodge the o-ring if it's defective.
Water pressure should not unseat the o-ring. IMHO you had a defective check valve.:)
It's designed to open and allow water to flow IN and to close under spring pressure to stop water from flowing OUT.
BUT if plumbing system is pressurized and the plunger is pressed in the inside pressure will cause water to flow out which can push o-ring out of position.
