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Thread: Metal squestrants

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    Modawg2k's Avatar
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    May 2013
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    Metal squestrants

    I'm going to be refilling the spa sometime soon and I was curious if there were any better options than my standard Leisure Time Metal-Gon product I've been using.
    ~15k gallons, 3'-5'-4' Figure 8 Shape In Ground
    Wetedge Satin Matrix Interior (Pebble)
    Paramount In-floor System
    Pentair IntelliFlo VS 3050, Pentair Triton II TR100 Sand Filter
    Pentair Intellichlor IC40 SWG

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    Mod Squad jblizzle's Avatar
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    Re: Metal squestrants

    What is the active ingredient? You can see the ones we recommend in the metals article in thesolving problems section in Pool School.
    Jason, TFP Moderator
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    Modawg2k's Avatar
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    Re: Metal squestrants

    Well I guess my next question would be...Do I even need a metal sequestrant when refilling my hot tub? I've just always been told that I need to add that when filling it up but if I don't need to use it then I won't. I use good 'ol city of phoenix tap water. The only thing it's high in that I know of is calcium (~200)
    ~15k gallons, 3'-5'-4' Figure 8 Shape In Ground
    Wetedge Satin Matrix Interior (Pebble)
    Paramount In-floor System
    Pentair IntelliFlo VS 3050, Pentair Triton II TR100 Sand Filter
    Pentair Intellichlor IC40 SWG

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    Join Date
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    San Rafael, CA USA
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    Re: Metal squestrants

    According to the 2013 Phoenix Water Quality Report 97% of your water comes from surface water that mostly started as snow pack so very little comes from wells where there might be iron. The highest detectable level of iron was only 7 ppb so you certainly don't need to use a metal sequestrant because of your fill water. Your Total Hardness is from 190 to 289 ppm and while they do not list Calcium Hardness (CH) it is usually around 70% of Total Hardness so is probably around 133 to 202 ppm so a bit on the high side. It's manageable if you keep your TA low at around 50 ppm and if you do that then you should also use 50 ppm Borates for additional pH buffering. This is what is normally done for the Dichlor-then-bleach method anyway.

    Though you won't be using it, the Leisure Time Metal Gon MSDS shows that the product is indeed HEDP which is what we recommend when a metal sequestrant is needed.
    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
    12 Fafco solar panels; Purex Triton PowerMax 250 natural gas heater (200,000 BTU/hr output); automatic electric pool safety cover; 4-wheel pressure-side "The Pool Cleaner"

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