I know it is not a construction question but, I recently replaced my deep
submersible pump in an 82 ft. deep well. The pump was not running and air
is coming out of the top of the well in a small hole in the metal cap that
seals the 10" pvc pipe casing that goes down the well.
It is like a small jet or stream of air........the plumber who works on
wells could not figure it.
No pump running, no water being drawn, no real water being added either
other than what comes in naturally. I assume it is at a level in the well
and so that there is no rise.....
The well also has about a 3" diam. 'p" garavel around the pvc......
I am stumped....
I do not think so.
We live in a very moderate climate and the water comes out at about 48o or
so and the temp is about the same..........when this was happening.......it
was evening.......and air was coming out of the small hole in the metal cap
like a miniature jet engine......phhhhhhhhh
Our temp varies from about 45o to about 60o this time of year......although
it is T shirt weather to me.......
I would really like to know what it could be?
thanks for the response.....john
So the pump shut off, and then you have air coming out the 'vent' (or
whatever that hole is)? OK, so pump shuts off, water level rises,
displacing air which vents. DOes that make sense?
Remember, a well can have, at the bottom, at a rather high flow
That's my take on it--bet it has been happening all along, but you
never noticed it...
(OK, above is somewhat a guess, but I've seen wells fill up fast
enough that that could happen...)
I thought that were the case....Trouble is, pump was off for some
time.......and the recovery is very quick. So, the air is coming out, even
after the well is recovered?
It is a real mystery. I may call a Geologist to see if he can make sense
out of it.
See, if the well is full......and the air still comes?
We thought maybe water / air was traveling with the water from higher up and
having a release at the opening of my well?
the plumber said could it be natural gas?
Never had seen that before either.......I may take a sample and ignite it?
(away from the well)
We do not live in an oil or gas area.......
Now one interesting thing.....there was a 6.5 earthquake 200 miles
north.....and did we feel it here......shake rattle and roll.......sounded
like a garbage truck coming up the road but it was the
Now did this create something?
I give.....sorry to bend your ear......just real curious.
Speak to a local Geotech. Engineer; your well casing , with the pea gravel
could be passing through a higher aquifer than you think you're drawing
from, that could account for the rapid recovery and air release.
You might log the presence or absence of the air every few hours for a day
or two in hope of seeing a pattern. If it's steady, throw away the pump
and let the air bubble your water up from below...
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