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Thread: Suggested Borate Levels

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    Suggested Borate Levels

    There is one pool store in my area that promotes Borates in your pool. They even have a program where they guaranty no algae if you follow their program. If you get algae, they will personally maintain your pool at their expense to get the problem resolved. Pretty good endorsement for Borates I'd say.

    Here's the catch. They say the normal 35-55 ppm borates are not enough in this area (Houston, TX). I'm guessing long days of hot sun are the reasoning. For them to give the guaranty, you have to maintain between 70 and 90 ppm.

    1) I have resisted using Borates because I have a dog and cat that do drink some pool water. I've convinced myself from my research that the 30-50 ppm is OK...but I'm certainly not convinced that at 70-90 it will still be OK.

    2) I'm adding borates more for the look and feel, and less for the algaecide quality (because I've found algae isn't a problem if you keep the FC/CYA/pump times in check). With that said, is more borates better to prevent algae...or are they just selling more product by requiring you to be at higher levels?

    Thanks in advance for any feedback.
    13,500 Gallon in ground Gunite Pool. Pentair challenger 2 HP pump, Natural Gas Heater, and DE Filter. Polaris 280, TF Test Kit, Borates, Acid, and Bleach to keep things clean.

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    JasonLion's Avatar
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    Re: Suggested Borate Levels

    We don't recommend raising the borate level above 80, and have never run into a case where going over 50 was required or even helped noticably.

    Are you sure your aren't mixing up borates with cyanuric acid? Most of what you just said makes a lot more sense if you/they are talking about the cyanuric acid level, which is very much related to the amount of sunlight your pool gets, while borates are not especially related to sunlight.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: Suggested Borate Levels

    It's definitely borates. Your response suggests my suspicion that it's a way to sell more! They sell the pro team line of products.

    I'll stick with the 30-50 recommended here. The pet issue was mandating that anyway.

    One other thing...no one sells borate test strips...the only store that can even test for them are the one that promotes their use.
    13,500 Gallon in ground Gunite Pool. Pentair challenger 2 HP pump, Natural Gas Heater, and DE Filter. Polaris 280, TF Test Kit, Borates, Acid, and Bleach to keep things clean.

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    orthofish's Avatar
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    Re: Suggested Borate Levels

    TF Test Kit sells them. See Jason's sig.
    Lynn

    16x38 FG, 20,400G, 1HP/2sp Tristar pump, Hayward 425sq ft cart. filter, Pro Logic4, SWCG, 3 returns, 2 main drains, 1 skimmer, 4 Pentair deck jets, Hayward Phantom pressure cleaner/booster pump, TF-100 of course :-)orthofish-s-pool-build-finally-t13179.html

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    Re: Suggested Borate Levels

    Yep...just ordered some. Also, I just finished putting in the borax. No one ever suggested this, but I highly recommend pouring the fine powder with your back to the wind! Live and learn.

    One more question, any waiting period before swimming after adding borates?
    13,500 Gallon in ground Gunite Pool. Pentair challenger 2 HP pump, Natural Gas Heater, and DE Filter. Polaris 280, TF Test Kit, Borates, Acid, and Bleach to keep things clean.

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    Re: Suggested Borate Levels

    A higher borate level will inhibit algae more. As you can see in Table 18 in this link, the amount of borates to inhibit algae varies by species where for Scenedesmus subspicatus, 50 ppm roughly cuts down the algae population by 50-70% (over 72 hours) but 100 ppm cuts it down by 90-100%. Of course, this is without any chlorine so with even a little chlorine 50 ppm is probably sufficient to inhibit a lot of algae growth. It's not enough to completely stop algae if chlorine gets to zero, but would certainly slow it down a great deal.

    They probably recommend the higher borates level for pools that get to zero chlorine so they won't get algae growth. At 50 ppm, they still might get algae eventually, but again only if the chlorine got to near zero. For anyone maintaining chlorine levels, they wouldn't get algae even without borates, if their FC/CYA ratio was appropriate.
    16,000 gallon outdoor in-ground 16'x32' plaster pool; Pentair Intelliflo VF pump; Pentair IntelliTouch i9+3s control system; Jandy CL-340 square foot cartridge filter
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    Re: Suggested Borate Levels

    Try this one -there is a link from Chem Geeks post. http://www.troublefreepool.com/threa...-Borate-Levels
    11 000 gallons, IG, Fibreglass, Monarch Sand Filter, Davey Typhoon C100M 1HP pump, Davey Chloromatic Mc16CTO ESR SWG, Davey Pool Wall Climba Robot, Daisy Solar Cover,
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    Patrick_B's Avatar
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    Re: Suggested Borate Levels

    This is a nearly five year old thread. Please refrain from bumping these old posts.
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    Re: Suggested Borate Levels

    Oops sorry I must have accidently posted on the wrong thread.
    11 000 gallons, IG, Fibreglass, Monarch Sand Filter, Davey Typhoon C100M 1HP pump, Davey Chloromatic Mc16CTO ESR SWG, Davey Pool Wall Climba Robot, Daisy Solar Cover,
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