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Thread: constant air in plumbing after submersible pump change

  1. #1
    DIY Member michla's Avatar
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    Default constant air in plumbing after submersible pump change

    Hi all,
    I wrote before about submersible well pump brands and last week it was done. A pro changed my submersible pump with like kind in residential well, 86 feet deep with 6 inch casing and pump set at 60 feet with pitless adapter at 8 feet and artesian plug right above that. There's absolutely no problem with static water level in my area--in fact, there's too much ! Thus the artesian plug.

    I called the pro 5 days after the pump was replaced because suddenly i seem to be drawing alot of air in the lines. Everytime I turn on the water in the house, there's violent "burps" of air from the spigots which usually expels about 15-20 seconds after first turning on the water. The pressure tank tested ok, new control box was installed too. This pro couldn't think of any reason so much air would get into the lines and the running water pressure hasn't changed--still 40psi.

    Any thoughts on what might be causing this after the pump change/plug install? The pro suggested the house is still purging air from the lines since most of the residual water ran out, but almost a whole week of air now ? 1600 sq ft residence with two baths, three bedrooms, no extraordinary plumbing requirements. Is that to be expected or might something else be going on? Is it possible that even though there are no water leaks anywhere in the house (I have checked thoroughly thinking that) can air be drawn through a pinhole or gap but water can't get out ? (that would seem odd to me)

    The air burps are popping out my faucet screens !

    Thanks
    Last edited by michla; 10-29-2013 at 11:15 PM.

  2. #2
    Moderator valveman's Avatar
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    You must have a check valve above ground somewhere. Then either you do not have a check valve on the new pump, or that check valve is leaking back. I would remove the above ground check valve as it only causes extra problems anyway. Then if the pressure leaks back after the pump shuts off, the pump man will need to replace the check valve on the pump or fix a leak in the drop pipe.

  3. #3
    DIYer, not in the trades LLigetfa's Avatar
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    My take on it too is that there is a topside checkvalve along with a leak letting in air. That or someone left in an airmaker (bleeder/snifter) when they changed out the galvanized tank for a bladder type.

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    DIY Member michla's Avatar
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    Quote Originally Posted by valveman View Post
    You must have a check valve above ground somewhere.
    Where would the above-ground check valve be located ?

  5. #5
    DIY Member michla's Avatar
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    Quote Originally Posted by LLigetfa View Post
    That or someone left in an airmaker (bleeder/snifter) when they changed out the galvanized tank for a bladder type.
    The pressure tank wasn't changed. It's an air bladder type.

  6. #6
    DIY Member michla's Avatar
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    Just speaking to a friend who is quite knowledgeable, he is wondering if there isn't trapped air or gas in the aquifer that wasn't confined in the casing until we put the artesian plug in !

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    Moderator valveman's Avatar
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    Quote Originally Posted by michla View Post
    Just speaking to a friend who is quite knowledgeable, he is wondering if there isn't trapped air or gas in the aquifer that wasn't confined in the casing until we put the artesian plug in !
    That would be very rare, so I doubt it. Post some pics and we will help you find the check valve, because it has got to go.

  8. #8
    DIY Member michla's Avatar
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    Quote Originally Posted by valveman View Post
    That would be very rare, so I doubt it
    I wouldn't. There is an increasingly offensive odor to my water supply since we plugged the casing

  9. #9
    Sprinkler Guy Wet_Boots's Avatar
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    What happens if you unplug the casing? How much water spews out?

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    DIYer, not in the trades LLigetfa's Avatar
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    Quote Originally Posted by Wet_Boots View Post
    What happens if you unplug the casing? How much water spews out?
    More to the point, does any air escape before the water comes?

  11. #11
    Porky Cutter,MGWC Porky's Avatar
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    It sounds to me as though the offence odor may be sulphur gas and the spurting may be the sulphur gas settling out in the lines and tank. In serious cases we've had to install a settling tank and sulphur release before the pressure tank to expel the gas.
    Porky Cutter, MGWC
    (Master Ground Water Consultant)

  12. #12
    DIY Member michla's Avatar
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    Quote Originally Posted by Wet_Boots View Post
    What happens if you unplug the casing? How much water spews out?
    about a gallon or two per hour

  13. #13
    DIY Member michla's Avatar
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    Quote Originally Posted by Porky View Post
    It sounds to me as though the offence odor may be sulphur gas
    Suphur gas is not common in my area. Methane very much is and harvested for profit ! And Methane is most odifirous.
    Earthquakes (albeit small nonetheless significant) certainly change water table flows and gas pocket releases a good bit from time to time. My residence is located near a swampy area too. The well is 86 feet with what has been a 6 foot static but that all changed 3 years ago especially with a wet climate cycle we're experiencing now.
    Last edited by michla; 10-31-2013 at 09:37 PM.

  14. #14
    DIY Member michla's Avatar
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    Quote Originally Posted by LLigetfa View Post
    More to the point, does any air escape before the water comes?
    Oh for sure, only on the hot water side of the tap tho.
    Aforementioned knowledgable friend suggested that the heated hot water permits gas/water seperation much in the same way that heated water suspends the mineral content.

  15. #15
    DIYer, not in the trades LLigetfa's Avatar
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    No, I meant when the plug is removed from the well.

    Yes, heating water will cause it to release dissolved gasses. Also, the cold inlet to the HWT might be plumbed so that it accumulates air that is in the cold supply lines.

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