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Thread: Spa: Foaming Problem

  1. #1

    Spa: Foaming Problem

    Im looking to use Chitosan as a control to the foaming problem, i was wondering if anyone has used these sort of products before? OR is there any other chemical recommened for oil & grease removal?

    If anyone does have experience w/ Chitosan can you provide some directions of use?

    Last but not least does oil absorbent sticks work i.e. scumbag and how effective is it?

    Your inserts are much appreciated.
    27,500gal IG plaster that needs recoating/painting!, Pentair Whisper-flo 1hp 2 speed, 48sf DE, Pentair Legend II pressure-side cleaner, BBB newbie

  2. #2
    Senior Member
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    Re: Spa: Foaming Problem

    Hi and welcome. I can't help but someone who can will be along shortly.

    However, please post a full set of test results for them to give you better advice.

    Also, please include your spa/equipment info in your signature... Go to User Control Panel, then Profile, then Edit Signature. Thanks.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

  3. #3
    Administrator JasonLion's Avatar
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    Re: Spa: Foaming Problem

    I have never tried Chitosan. I normally use an enzyme product, like Spa Perfect, to control foaming. Keeping your CH level at 150 or higher also helps.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  4. #4

    Re: Spa: Foaming Problem

    Enzymes would really be out of the question would be vry expensive to ship into asia, only sources that are locally available to me are as follows:
    1. Chitosan Liquid or Powder
    2. Oil Absorbent Pads
    3. Silicone Base Defoamers

    Does increasing Calcium Hardness help that much? And by increasing my calcium lvls how is it going to effect mineral precipitation?

    Test Results:
    Br: 5.6
    pH: 7.8
    TA: 100
    CAL: 60
    TDS: 1274
    Temp: 38 C
    27,500gal IG plaster that needs recoating/painting!, Pentair Whisper-flo 1hp 2 speed, 48sf DE, Pentair Legend II pressure-side cleaner, BBB newbie

  5. #5
    Administrator JasonLion's Avatar
    Join Date
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    Re: Spa: Foaming Problem

    Increasing CH to 150 can help dramatically. There won't be any mineral problems unless the CH level gets much higher than that.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    TFP Admin. Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  6. #6

    Re: Spa: Foaming Problem

    Ill try increasing the CH level and see how it goes. But then again it seems that i have this layer of film on top of the water most of the time so does it really mean a oil problem?
    27,500gal IG plaster that needs recoating/painting!, Pentair Whisper-flo 1hp 2 speed, 48sf DE, Pentair Legend II pressure-side cleaner, BBB newbie

  7. #7
    Guest

    Re: Spa: Foaming Problem

    Chitosan is a clairifier (in fact it's the main ingredient in most 'natural' or 4 in 1 clarifiers) and is the best kind of clarifier to use with a cartridge filter but it will not help with foaming. Foaming is usually a problem of underlying water balance issues. Correct the problem and the foaming will stop. Enzymes can help by getting rid of the organics that tend to cause foaming.
    Defoamers are based on silicone compounds (simethicone), that reduce surface tension and cause the bubbles to break but merely cover up the problem.

    IF you have an oil slick on the water the two best methods (and they can be used together in bad cases are:
    a scumbug or scumball or sunsorb floated in the water (a special oil absorbing 'sponge' that is inexpensive and will last a year or more--check the pool/spa supply and online). Often this will solve the problem for under $10. You just need to rinse it out under the faucet every week or so.

    weekly additions of an enzyme product, While enzymes work very well they can be expensive to use. I would try the scumbug first.

    Also, increasing the CH, as Jason said, would be your first step. Remember, hard water does not foam as readily as soft water.

    In really bad cases you might need both.

  8. #8

    Re: Spa: Foaming Problem

    Seems like the industy is promoting chitosan as an oil coagulant...? I wonder iv found some write ups saying to dose 5 mg per ltr and allow filter to filter out.

    Definately going to dry scumbags, is it advisable to place in skimmer basket? or should i really be floating them instead?

    I would love to try enzymes but then shipping in liquid would be exp for me. Does Alum or PAC help or are there any other chemicals that can actualy coagulate oil?
    27,500gal IG plaster that needs recoating/painting!, Pentair Whisper-flo 1hp 2 speed, 48sf DE, Pentair Legend II pressure-side cleaner, BBB newbie

  9. #9

    Re: Spa: Foaming Problem

    Having four girls around in the house means troble for my spa. Thanks for the tips.
    Out of topic: why is chitosan a good clarifier with cartridge filters and what makes it
    such a good clarifier in itself?
    27,500gal IG plaster that needs recoating/painting!, Pentair Whisper-flo 1hp 2 speed, 48sf DE, Pentair Legend II pressure-side cleaner, BBB newbie

  10. #10
    Guest

    Re: Spa: Foaming Problem

    Quote Originally Posted by aho.lwi
    Definately going to dry scumbags, is it advisable to place in skimmer basket? or should i really be floating them instead?
    I keep one in th skimmer basket of my pool and float another in the spa.

  11. #11
    Guest

    Re: Spa: Foaming Problem

    Quote Originally Posted by aho.lwi
    Having four girls around in the house means troble for my spa. Thanks for the tips.
    Out of topic: why is chitosan a good clarifier with cartridge filters and what makes it
    such a good clarifier in itself?
    It does not clog up a cart as quickly as the synthetic polymers do. Also if you overdose with a synthetic it can actually cause the water to cloud in such a way that it never clears (becomes a colloidal suspension). There is also evidence that chitosan based clarifiers can help remove some metal ions and other contaminants that normally cannot be filtered out.

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