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Thread: Check for metal sequestrant

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    Check for metal sequestrant

    Hi All
    After completing an AA treatment, adding metal sequestrant, bringing chlorine up to correct level and balancing
    Is there a test to check the amount of sequestrant in the water or should it just be used periodicaly
    10,000 gallons inground Leisure fibreglass pool, Hayward powerline pump, Quality120 glass media filter, 27kw output air source heat pump and thermal cover.
    Retractable cover with Polycarbonate roof and glass side for all year round use. K-2006C test kit and Speed stir

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    duraleigh's Avatar
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    Re: Check for metal sequestrant

    That's a good point.....there is no test for it so you will have to intuit when it has grown weak enough that you need another dose.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

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    Re: Check for metal sequestrant

    Thanks for the reply
    Is the only way we lose it by backwashing or does it break down


    10,000 gallons inground Leisure fibreglass pool, Hayward powerline pump, Quality120 glass media filter, 27kw output air source heat pump and thermal cover.
    Retractable cover with Polycarbonate roof and glass side for all year round use. K-2006C test kit and Speed stir

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    Mod Squad pooldv's Avatar
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    Re: Check for metal sequestrant

    Chlorine breaks it down.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Check for metal sequestrant

    That's a bit of a rough deal not knowing when to top up


    10,000 gallons inground Leisure fibreglass pool, Hayward powerline pump, Quality120 glass media filter, 27kw output air source heat pump and thermal cover.
    Retractable cover with Polycarbonate roof and glass side for all year round use. K-2006C test kit and Speed stir

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    Mod Squad pooldv's Avatar
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    Re: Check for metal sequestrant

    There are usually subtle signs of staining or greenish tint to the water. Plastic parts, like skimmers, usually turn a little brown first. When you start to notice that an early dose of sequestrant will usually lift the stains so you don't have to keep doing AA treatments.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: Check for metal sequestrant

    As it turns out, depending on the product you use, there is a test. Here is a link you can look at: http://jacksmagic.com/product/sequest-test-kit/
    Bob - INTEX 12x24 owner (not setup yet), 'New to me' Kreepy Krauly Sand Shark, Test kit: TF-100 w/Speed Stir

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    Mod Squad pooldv's Avatar
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    Re: Check for metal sequestrant

    Hey, look at that. Not cheap, but good find.
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    JoyfulNoise's Avatar
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    Re: Check for metal sequestrant

    Taylor has a test kit for various phosphonate based sequestrants. The multiplication factor (ppm's per drop) changes based on the type of sequestrant (HEDP, ATMP, etc). But the kits are expensive, well over $100.

    See here - Welcome to Taylor Technologies
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Check for metal sequestrant

    I'm based in the UK and i've been using LO-Chlor No More Metal
    I'm not sure of what composition it is
    They say it can be filtered out
    10,000 gallons inground Leisure fibreglass pool, Hayward powerline pump, Quality120 glass media filter, 27kw output air source heat pump and thermal cover.
    Retractable cover with Polycarbonate roof and glass side for all year round use. K-2006C test kit and Speed stir

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    Re: Check for metal sequestrant

    Quote Originally Posted by denniswiseman View Post
    I'm based in the UK and i've been using LO-Chlor No More Metal
    I'm not sure of what composition it is
    They say it can be filtered out
    According to this website - http://www.ukpoolstore.co.uk/acatalo...-Metal-SDS.pdf

    It's HEDP. So one of those test kits would work if you wanted to spend lots quid on it!
    Matt
    16k IG PebbleTec pool, 650gal spa, spillway and waterfall, 3HP IntelliFlo VS / 1.5HP WhisperFlo, Pentair QuadDE-100 filter, IC40 SWCG, MasterTemp 400k BTU/hr NG heater, KreepyKrauly suction-side cleaner Dolphin S300i robot, EasyTouch controls, city water, K-1001, K-2006 and K-1766 test kits, Mannitol test for borates

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    Re: Check for metal sequestrant

    Quote Originally Posted by JoyfulNoise View Post
    According to this website - http://www.ukpoolstore.co.uk/acatalo...-Metal-SDS.pdf

    It's HEDP. So one of those test kits would work if you wanted to spend lots quid on it!
    Thanks for that
    The problem is shipping (if you can find someone) and 20% VAT
    I might have a word with LO-Chlor and see if they have a test
    10,000 gallons inground Leisure fibreglass pool, Hayward powerline pump, Quality120 glass media filter, 27kw output air source heat pump and thermal cover.
    Retractable cover with Polycarbonate roof and glass side for all year round use. K-2006C test kit and Speed stir

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