Hi: Heard a hissing sound in the well casing, which looks to be water
spraying into the casing above the water level. It stops as soon as the pump
is no longer called on to supply water to the house. I don't know if this is
'normal' or it is a leaking valve/fitting/washer. The pump doesn't quick
cycle and seems to working as it has for 20 years. What's going on?
Well, according to Mr. Fleming the pump-man, there's no problem. He said
that some older systems had a valve in the casing that would cause the
blow-off I heard and that the newer bladder type pressure tanks took care of
the problem. Usually the valve was removed once the bladder-type tank was
installed, but some plumbers just left it in. He said that as long as I was
getting enough water and that the pressure was fine, don't touch it. Thanks
My well casing hisses too as the pump draws down water and air rushes in
from above ground to equalize pressure. After the pump shuts off it stops
for a while and then starts hissing out as the water flows in down at the
pump level and refills the casing. That's normal for MY well and it's been
doing it for 29 years, but I don't know what's "normal" for yours or why you
think there's water spraying. That would definitely NOT be normal.
Thanks, guys. I think Pete may be right. I'll check with a pump service I
know of. It's just good to have some idea of what's going on before I deal
with plumbers. I don't think the pump has a leak as its down in the casing
under water; how far I really don't know. It's a pipe that sits about three
feet below ground and connects to I'm not sure what just above the water
line in the casing. I don't think its the footvalve that the line to the
house is connected to. I had that line break away from the valve some years
ago and the ground got saturated around the casing. That's not
happening...It looks like there's a spray of water (air?) just above the
water line, but also when the pump goes off, I can see water trickling back
down from the pipe I mentioned earlier. I guess I'll find out tomorrow. So
far, no harm done in the way of lower water pressure or cycling on and off
of the pump in an abnormal way, i.e. the system is holding pressure.
I also think you got a leak in the pipe that goes to the house. You
would not notice a leak underwater.
If the well is several hundred feet deep, call your plumber. If it's
a shallow well, say 75 feet or less, you can probably pull the pipes
yourself if you feel up to doing the job.
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