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Thread: Air bubbles

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    Air bubbles

    I noticed air bubbles coming out of two jets in the pool is that normal. I have a DE filter StaRite it has grids in it

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    Re: Air bubbles

    Some jets are designed to have air coming in. They are usually venturi type jets, and they are usually on steps and seats. If they are regular returns, then they should not have air coming in with the water. If they do, then there might be a suction side air leak. A suction side air leak can usually be seen as air in the pump basket area.

    If you have a SWG, then there will be very tiny hydrogen bubbles when the cell is making chlorine.

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    Re: Air bubbles

    Yea there is air pockets in the pump basket, I was advised that it might be one of my grids having a hole

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    JesseWV's Avatar
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    Re: Air bubbles

    The grids are in the filter which is on the pressure side. Any air that you have is coming from the suction side.
    16k gal, 28'x3.5', Vinyl A/G, 1hp Pentair Dynamo 2-speed Pump, Hayward S160T Sand Filter, Intermatic HB800RCL Digital Timer, Intex 8110 SWG, TF-100 Test Kit, SpeedStir Author: Jesse's Graphical Pool Testing Log

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    Re: Air bubbles

    So, what would be the solution to repair the problem. I had never seen bubbles come out before from the jets, and yes one of the jets is by the stairs. I back wash it and bubbles disappear for 30 min. or so then return.

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    JesseWV's Avatar
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    Re: Air bubbles

    Backwashing temporarily pushes the air out of your filter. Without finding and repairing your suction side leak it will continue to build up. I had a pretty big leak when I first took over our pool. It got so bad that when the timer turned the pump off at the end of the day, the now pressurized air forced it's way back though the skimmer causing a 3 foot geyser!

    You can use a can of regular shaving cream to help find leaks. Just put some around all the fittings and watch for the air bubbles to stop. You may even be able to see it get sucked in.

    ---

    If there isn't air coming from the jet by the stairs when you first turn the pump on, chances are it's not a venturi type jet and shouldn't have bubbles.
    16k gal, 28'x3.5', Vinyl A/G, 1hp Pentair Dynamo 2-speed Pump, Hayward S160T Sand Filter, Intermatic HB800RCL Digital Timer, Intex 8110 SWG, TF-100 Test Kit, SpeedStir Author: Jesse's Graphical Pool Testing Log

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    Re: Air bubbles

    Ill try it after work. By the way I looked at the pump this morning and there was no water in the pump basket, would that be because of the leak?

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    JesseWV's Avatar
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    Re: Air bubbles

    It might be due to pressurized air in the filter forcing itself backward like I mentioned above. When this happens it pushes the water out of the pump basket and back into the pool. Could you post a pic of your pump and filter setup?
    16k gal, 28'x3.5', Vinyl A/G, 1hp Pentair Dynamo 2-speed Pump, Hayward S160T Sand Filter, Intermatic HB800RCL Digital Timer, Intex 8110 SWG, TF-100 Test Kit, SpeedStir Author: Jesse's Graphical Pool Testing Log

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    Re: Air bubbles

    If you are lucky, the suction side leak is from the lid of your pump basket. Check the seal and look for blades of grass and other debris. When I get bubbles that's always been the reason. You might be so lucky.
    20,000 gal in-ground plaster pool with sand filter. Replastered recently. Mostly adding bleach and acid. CYA was high when I took over.

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    Re: Air bubbles

    K got home no water in the pump basket, and clean of debreis, I turned pump on water is flowing. Sorry was unable to upload pic iPad sucks

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