Here's the scenario. I have a 3' wide, 30' deep hand-dug well (a real,
genuine 'stone-walled' well -- a historical relic on it's own! :) ) It
currently has plenty of water in it -- I've seen the water lower than it is
A few months ago I replaced the old galvanized tank since it was leaking
through. We put in an 80gal bladder style tank. The result was amazing
(going from 4 seconds on, 6 seconds off to 3-4 minutes off, 1 minute on
while running the garden hose full).
The problem is I've noticed air in the system. The air only occurs when
the pump is on. I've looked at the pipe in the well, and don't see any "air
bleeders" that were supposedly used to keep galv. tanks from saturating.
Our old galv tank was leaking at the inlet, so any air would have leaked out
long before being drawn into the house system.. It's been many months since
the new tank was installed, so it can't still be air purging from it.
The well sits about 20' from the house. In the basement I have a 1/2hp
shallow well "Red Jacket" internal jet pump, in a single-line configuration.
The pipe going to the well from the pump is 2" PVC. The fittings from the
pump down look something like this:
Pump (made in 1996, so the sticker says)
2" evil galvanized male-male (2" length) fitting
2" check valve (Not sure about material - isn't rusting on the exterior
like the galv.)
2" evil galvanized nipple
2" Black PVC pipe, runs about 15' along the basement floor(dirt), and
then the 20 feet to the well.
In the well: a 2" PVC 90-degree elbow about 4-5' from the surface where
the pipe from the basement enters and then a length of PVC pipe running
vertically down the well. What is at the end of this pipe? I'd hope there
would be a foot valve there, but since the previous owner was the king of
shortcuts, the duke of half-finished jobs, and president of shoddy work in
general I wouldn't be at all surprised if there isn't one. We do get debris
in the water, which might indicate there's no screen there.. My gut feeling
is that the check-valve at the pump was a work-around for something, but I'm
not sure what..
I suspect the fittings on the suction side of the pump, they're
galvanized. I also wonder if it could be the pump it's self, or if I've
missed something obvious. It's impossible to listen for any leaks since the
pump is too loud. Any water leaking might not be noticeable since there is
a ton of condensation on the plumbing. I'd tear it all apart right now,
except I'm afraid that I won't be able to undo the rusty galvanized fitting
at the pump, and if I do, that I won't be able to re-prime the pump if there
is indeed no foot valve.
Can anyone think of anything I've missed that could cause air to get
into the system?