On 6/7/2018 7:45 AM, trader_4 wrote:
On Thursday, June 7, 2018 at 12:14:15 AM UTC-4, bob wrote:
replying to trader4, bob wrote:
How do replace the air valve if it's bad?

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The ones I've seen were just shrader valves like those that go in
a car tire. Screw it out with a valve removal tool or a metal valve
cap that has that feature on the end. You then have to charge it to
the correct air pressure.


And for Bob, the OP, know also that just because the tank loses that
pressure, it doesn't necessarily follow that the valve is bad. In older
tanks, without rubber bladders, the air is "absorbed" by the water and
the ambient pressure of the tank decreases with time until there is no
air cushion at all. In those types of tanks, routine re-pressurization
is required. Same holds true for a bladder type tank that has a
ruptured bladder. I didn't see where you explained just why you feel
the valve itself is the problem.