Pressure tanks that are out of air (either a hole in the diaphragm or
all the air dissolved into the water) usually cause the pump to cycle on
and off rapidly, at least that is how my pond irrigation pump acts when
the diaphragm ruptured. This does not sound to me like it is the
problem. One way to find out is to turn off the pump and fill the bath
tub and see how much water you get out before the water shuts off. That
will be the capacity of the tank. The tank should have some markings on
it to say what its capacity is. The capacity of my tank is about half of
what you would expect that size tank to hold due to the air.
Peace,
Pat
Thusly spake ericm@lne.com:
> Hi Mark.
>
> The pressure tanks have air in the top to provide the pressure.
> On ones that don't have a diaphram, the air bubble slowly is
> absorbed into the water and disappears. So you need to let more
> air into it every so often.
>
> I don't know which valves to turn to let air in, we have a gravity system.
>
> If you have the diaphram kind, the diaphram can leak and cause
> the same problem.
>
>
> You shouldn't be getting pressure directly from the pump, its
> only supposed to fill the tank not pressurize the system.
>
> Eric
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--
Pat Horne, Owner, Horne Systems
(512) 797-7501 Voice 5026 FM 2001
Pat@HorneSystemsTx.com Lockhart, TX 78644-4443
www.hornesystemstx.com
-- We support Habitat for Humanity - a hand UP, not a hand OUT --
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