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Thread: Phosphates??

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    Cool Phosphates??

    Just had my water tested at Leslies (getting my own test kit soon) and found out I have phosphates at 100 ppm. Is that a problem? how do I bring it down?
    12,000 gallons IG, Pebble Tec, Hayward C2025 Cartridge, Hayward TriStar 3210EE Pump, T-Cell-9 SWG with Pro Logic Control Box, Built August, 2009.

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    jcowart's Avatar
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    Re: Phosphates??

    Welcome to TFP. Well your off to a good start by getting your own test kit. Just make sure it's an FAS-DPD kit. Leslie's likes to sell you the DPD kit and tell you it's the same thing. Phosphates are a way of Leslie's separating you from your money. They are in the chemical sales business. Read pool school. The link is at the top of the page. Take it in small chunks. It looks like a lot of info but it really is easy to grasp.
    17500 gallon Doughboy AGP, Hayward DE filter, waiting for the 1.5hp DB pump to go out.
    Learn to take the advice here and be trouble free or use the pool store's advice. "You can't do both and get very far"

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    svenpup's Avatar
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    Re: Phosphates??

    Ignore phosphates and always keep FC above minimum for your CYA. I recommend the TF-100 test kit and add a speed stir. Pool store testing is unreliable.
    TFP Method Advanced Intermediate
    • 17,500 gallons - In Ground - Plaster - Hayward Swimclear 3020 Cartridge Filter - Sta-Rite Max-E-Glas Main Pump upgraded with A.O. Smith B2980 E-Plus New Centurion Two-Speed Motor - Polaris 280 Cleaner with Polaris PB4-60 Booster Pump - TightWatt2 Timer - Taylor K-2006 Test Kit - Pool Pilot Digital Nano SWCG

    Helpful Links: Pool School, BBB for Beginners, How to Shock (hint...it's a process not a product), Chlorine/CYA Chart, Jason's Pool Calculator

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    wjr75's Avatar
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    Re: Phosphates??

    phosphates of 100pm is low so you would be good anyways.
    Inground 22k gallon gunite 15x31 main pool, 15x7 wading pool/sunning deck, hot tub/with overflow (9' octagon with limestone top) & slide NSWG, Aqua Blue Pebble Sheen
    Filter dual cartridge Sta-rite 450sq/ft, TF-100 Test Kit
    Heater Raypak 2100 400k btu cupro-nickel exchanger
    Auto pool cover, Polaris 280 auto pool cleaner, Jandy AqualinkRS8 Remote Control System

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    Re: Phosphates??

    ^^
    Even though I just had someone tell me that anything 100 or over would "eat my chlorine" today. LOL
    Built in 1957 44,000 gallon in-ground, Wet Edge Primera Stone in Sky Blue, Intelliflo VF Pump, 600 lb. Pentair Triton II TR-100 Sand Filter, CircuPool RG 60 Plus SWG, TF-100 test kit
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    chiefwej's Avatar
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    Re: Phosphates??

    Phosphates are, (as the pool store loves to say) "algae food". That is true enough, but with chlorine in a pool all algae is killed so it makes absolutely no difference how much "food" there is. For that reason we say to ignore phosphates.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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    Mod Squad JVTrain's Avatar
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    Re: Phosphates??

    My favorite analogy for phosphates: Phosphates are like the food at an all-you-can-eat buffet and the algae are customers that could really go for some food. However, the doors to the buffet are always locked shut (sufficient chlorine levels) by the manager (you) and the customers can't get in the door. It doesn't matter how much food is there for the eating if the doors are never open. Removing the food from the buffet doesn't change how many customers get in the door.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: Phosphates??

    Killing the customers is an effective way of keeping them from eating.

    Chlorine doesn't just keep them away from the food, it makes sure they are dead.
    chiefwej
    Tucson, AZ
    16x36 rectangular (19k) Pebble Tec play pool/spa, Pentair Intelliflo VS 011018, Super II 2hp (spa), Aqua Rite T-15 SWG, Pro Grid 60 DE, Hayward H400 & Heliocol Solar heating, A&A infloor system, fill water w/high CH and TA, 50 ppm borates,TF-100 test kit

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    Phosphates??

    Can you please verify your phosphates unit of measure?

    100 parts per BILLION

    OR

    100 parts per MILLION

    It makes a HUGE difference because phosphates are typically measured in parts per billion (ppb).

    If indeed you do have phosphates at 100ppm, that would be a problem but not because of algae. High phosphates can increase calcium scaling and having phosphates that high would cause calcium phosphate scaling at typical pool pH and temperature values.



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    Mod Squad JVTrain's Avatar
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    Re: Phosphates??

    Quote Originally Posted by chiefwej View Post
    Killing the customers is an effective way of keeping them from eating.

    Chlorine doesn't just keep them away from the food, it makes sure they are dead.
    Haha. Didn't want to go down the road of "chlorine is like snipers on the roof, killing off customers" but that works!
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: Phosphates??

    LOL, well they say its a war out there...
    Randy H.

    Intex 18' X 48"
    G.A.M.E. Sandpro 75 Sand Filter (Single Speed 3/4 HP, 75 lbs sand, 2650 GPH, 7-way valve)

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