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Thread: cloudy water = bubbles from intex swcg?

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    john redcorn's Avatar
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    cloudy water = bubbles from intex swcg?

    18' summer escapes pool. Been set up for 3 weeks, added an intex swcg and intex 14" sand filter last weekend.

    Water tests ok for everything at the pool store, seems perfectly clean except a bit cloudy. shining a bright flashlight into it at night it really seems like it's just full of bubbles. I was in the pool earlier today cleaning and the walls are completely coated with bubbles. Any way to get rid of them or just live with it?
    ------------------------------------
    18' Summer escapes with original skimmer + intex pump + intex sand filter w/ Zeolite, Intex SWG. 1x ecosaver 50sqft solar panel with dedicated pump.

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    JasonLion's Avatar
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    Re: cloudy water = bubbles from intex swcg?

    If the problem is bubbles from the SWG, it should go away when you get the water properly balanced.

    You can verify that bubbles from the SWG are the issue by turning off the SWG for a few hours. If it is bubbles, it will clear right up.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: cloudy water = bubbles from intex swcg?

    I am getting a similar effect with my intex SWG. Don;t know if I have the same cause. Can JasonLion clarify what is meant by "properly balanced"? i.e. what imbalance would make the SWG bubble?

    I am fairly confident the source of bubbles is the SWG. Intex has clear pipes so you can see clear water coming into the unit (see slide1) and then LOTS of bubbles forming around the metal plates in the electrolytic cell mid-section before passing out and into the pool.
    [attachment=1:3r2l8zyl]Slide1.jpg[/attachment:3r2l8zyl]

    I am wondering if I have an air leak in the seam of the electrolytic cell (see slide2). Doesn't seem like that much air should be trapped in there. Tempted to try some silicon to seal it up but unit is still under warranty. Maybe I should just send it in. Ideas?
    [attachment=0:3r2l8zyl]Slide2.jpg[/attachment:3r2l8zyl]
    Attached Images Attached Images
    4500 gal., AG Intex rectangular 9*18*52 pool, Intex SWG with Intex Sand Filter

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    linen's Avatar
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    Re: cloudy water = bubbles from intex swcg?

    Welcome to tfp, china_pt

    The swg should be on the pressure side of your pump (and last thing before the return to the pool) so it is under pressure and will not draw in air where you show it. The intex does create a gas that can pool up in that area of the cell. Usually a higher flow rate will reduce the amount trapped there, but as long the flow switch is freely moving and indicates enough flow, that amount of air isn't a problem.

    The swg will create small bubbles , but they usually dissipate right when they enter the pool.
    TFP Expert who uses Pool School and my TF100 test kit along with PoolMath for my: Round 11K gallon AGP with deep end, 20" sand filter, Matrix 1hp 2spd, 6 2ftX20ft solar panels (and solar cover!), Intex SWCG (copper bars disconnected) and a Rubadub hot tub (chlorine). The SLAM process is not finished until: 1. CC < 0.5 ppm, 2. An OCLT < 1.0 ppm and, 3. The water is crystal clear.

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    Re: cloudy water = bubbles from intex swcg?

    For general knowledge, are the bubbles caused by SWG chlorine gas? if yes, why is it connected to the balancing, shouldn't the bubbles appear anyway?
    12,000 Gallons, SWG, autmatic pH system, High usage, sand filter.

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    john redcorn's Avatar
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    Re: cloudy water = bubbles from intex swcg?

    Found out for good yesterday that my cloudiness bubbles were caused by a leak in my suction-side plumbing letting air in. I tried to backwash the filter and noticed I had a LOAD of air in the filter that came out before any water did. It's all re-clamped and good now.
    ------------------------------------
    18' Summer escapes with original skimmer + intex pump + intex sand filter w/ Zeolite, Intex SWG. 1x ecosaver 50sqft solar panel with dedicated pump.

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    JasonLion's Avatar
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    Re: cloudy water = bubbles from intex swcg?

    All SWGs always produce hydrogen bubbles when they are active. However the size of the individual bubbles varies depending on quite a number of factors. The bubbles are normally next to invisible, but under certain conditions they can be a size that strongly refracts light, making the bubbles very obvious. This usually only happens when CYA is really low and the water is cold, but there are other combinations that can cause it.

    99% of the time if you balance your levels to the recommended range it will go away (because that will change the size of the bubbles).
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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