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Thread: Determining the safety of Pool Chemical products

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    Determining the safety of Pool Chemical products

    I have a salt water pool. I have been lucky so far, to have 2 summer's of relatively free maintenance. (My testing seems to come in within limits every time.)

    The only chemical aside from the Salt, that I've been adding to the pool this year is BioGuard Pool Magnet (remedy).

    I fill the pool a couple of inches once a week or two with water that has high iron content.

    My question is, how can I determine the safety to humans using this product? Obviously the manufacturer will tell you its safe. Are there any other information sources for this kind of thing?

    Thanks!
    Inground/liner. 22000 Gallons -- STA-RITE SYSTEM 3 Filter - IntelliPro VS+ SVRS Pump -- MasterTemp 250 Heater.

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    Re: Determining the safety of Pool Chemical products

    Material Safety Data Sheet (MSDS) Wiki

    I believe all chemicals used for swimming pools must have an MSDS on file. The easiest way to find out what's going on is to Google "Product X MSDS."

    BioGuard Pool Magnet MSDS

    See if that helps! Good luck!
    Jorge - Tampa Bay

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    Re: Determining the safety of Pool Chemical products

    This info is extremely helpful. Thank you. I never knew this kind of info was available.

    However, it doesn't really help me with what I am wondering about. For instance, it states that it is corrosive to the eyes. That's pretty darn scary. Are there any watchdog groups out there that test these products at certain concentrations in the pool?

    Frankly when you see something like that, it makes you want to live with an iron stained pool.

    Thanks again.
    Inground/liner. 22000 Gallons -- STA-RITE SYSTEM 3 Filter - IntelliPro VS+ SVRS Pump -- MasterTemp 250 Heater.

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    Re: Determining the safety of Pool Chemical products

    The primary chemical in that metal sequestrant is HEDP. Note that the hazards listed in the MSDS are referring to concentrated product, not diluted in large volumes of water as in pools. It doesn't appear to have any significant dermal absorption and it's oral toxicity is of the same order of magnitude as chlorine or ordinary table salt. It doesn't produce hazardous by-products and when it slowly breaks down from chlorine it produces orthophosphates which aren't a problem though are a nutrient for algae. So long as you maintain proper chlorine levels, that shouldn't matter.
    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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    Mod Squad jblizzle's Avatar
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    Re: Determining the safety of Pool Chemical products

    Kind of off topic, but ....
    I am surprised that your pH is not continually rising due to the SWG ... thus requiring addition of muriatic acid.

    Do you have a full set of test results we could check out? I suppose it is possible that with a low TA the pH is stable, but that seems pretty rare.

    Just want to make sure some issue is not sneaking up on you.
    Jason, TFP Moderator
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    Re: Determining the safety of Pool Chemical products

    I check my pH with 2 different methods. Neither of which is top of the line, but both report very close results. (I don't know the pool jargon, forgive me.) One is the cheapy test strips, and the other is the colored drop based tests. Last year my pH did rise, but I was new to the system and probably over used the 'shock' feature of the SWC. This year I've only shocked the pool once after a big party, and the salt level dropped according to the SWC forcing me to add salt.

    I have a 22,000 Gallon pool and keep the SWC set at 20%.
    Inground/liner. 22000 Gallons -- STA-RITE SYSTEM 3 Filter - IntelliPro VS+ SVRS Pump -- MasterTemp 250 Heater.

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    Re: Determining the safety of Pool Chemical products

    You're a profit. My ph has gone up above 7.6 since last test. I'm using pentair 78hr test kit. I cant for the life of me find the acid demand chart to see how much h acid to add.
    Inground/liner. 22000 Gallons -- STA-RITE SYSTEM 3 Filter - IntelliPro VS+ SVRS Pump -- MasterTemp 250 Heater.

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    Mod Squad jblizzle's Avatar
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    Re: Determining the safety of Pool Chemical products

    Use the poolcalculator to know how much to add.

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    Jason, TFP Moderator
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    Re: Determining the safety of Pool Chemical products

    Funniest thing... I was just out on the pool calculator site, and my installer pulls into my driveway to bring me a brand new Taylor test kit. I guess I'm good to go now. lol.
    Inground/liner. 22000 Gallons -- STA-RITE SYSTEM 3 Filter - IntelliPro VS+ SVRS Pump -- MasterTemp 250 Heater.

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    Mod Squad jblizzle's Avatar
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    Re: Determining the safety of Pool Chemical products

    Which kit? Ideally it is the K2006. If not you still should buy the FAS-DPD test from tftestkits.net

    Posted with Tapatalk ... sorry if I sound short ... hate typing on phone
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    Re: Determining the safety of Pool Chemical products

    Yes the k2006. Interesting point. For my 22,000 gallon pool, the Acid demand test recommended 3.x lbs of dry acid. (I think my pH was about 8.0) The side of the acid container recommends 1/2 that amount. I went with the test kit. Since last year I couldn't get the pH down according to lesser test kits.
    Inground/liner. 22000 Gallons -- STA-RITE SYSTEM 3 Filter - IntelliPro VS+ SVRS Pump -- MasterTemp 250 Heater.

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