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Thread: Phosphates - Real or Hype?

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    Join Date
    Jul 2010
    Location
    Mobile, Alabama
    Posts
    12

    Phosphates - Real or Hype?

    I saw an ad for pool chemicals lately that asked if I had tested for phosphates. It said that algae eat phosphates, and that getting rid of the phosphates would starve (kill) the algae. It said I should use a product called Phos-go to get rid of the phosphates.

    Anything to this? Should I be using this product or some other to get rid of phosphates? I might add that keeping my chlorine levels up usually controls the algae, although sometimes after a particularly hard rain, the algae will bloom, causing me to have to shock the pool. I live in Mobile, Al.
    16' x 32' in-ground pool, approx 24000 gallons, Hayward S244T sand filter, 1 HP pump, Vinyl liner

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    Guest

    Re: Phosphates - Real or Hype?

    Read here, Richard gives you a good comparison with wood and fire.

    post239942.html?hilit=Phosphates#p239942

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    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
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    37,879

    Re: Phosphates - Real or Hype?

    Just ignore your phosphate level. Mince is over 2,000 and used to be over 3,000 and has never caused a problem.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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    Re: Phosphates - Real or Hype?

    Make sure that you are maintaining the chlorine according to this chart.

    What is your cyanuric acid level?
    What levels do you keep your chlorine at?
    What forms of chlorine do you use?

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    Puffin's Avatar
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    Jul 2010
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    Metro Atlanta, Georgia
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    217

    Re: Phosphates - Real or Hype?

    There's nothing really magical about algae. Dealing with algae, albeit frustrating at times, just takes knowledge and understanding. I've been following this forum for awhile, everyone here tries to provide knowledge and facilitate understanding.

    Having been a fish keeper and planted tank enthusiast for years, dealing with algae is a part of life. The key is understanding. Algae is just a microscopic plant, think of it as a weed. Weeds get started because of available resources and opportunity. Resources tend to exist in nearly all media (soil, water etc...) Sometimes we add resources (fertilizer) for our plants. Other times we ignore them, such as in a rock garden or a pool. Opportunity is one of the best place to deal with them. If they never get started then you never have to deal with them. If they do get started, we beat them back vigorously and resume prevention.

    This site's approach makes perfect sense, maintain proper sanitation (prevention) and they won't get a started. If they do, shock (beat it back). By doing this we can just ignore the resources.

    My problem with addressing phosphates is twofold. First it suggests you're not maintaining proper prevention. Second, it ignores all the other nutrients (micro and macro) that plants need. When you create a nutrient deficiency you're begging for a weed infestation (assuming no prevention). Think about your lawn care, if your soil is out of balance you get give dandelions, clover, plantains, etc... the edge over your grass. Lastly we want some of those nutrients in the water. Some of us add CO2 and calcium to help manage our water chemistry. We all know plants (algae too) need CO2. (Calcium is a micro nutrient)

    Are phosphates an issue? Short answer No, not if you maintain good sanitation (as stated above).
    19,600 gal, Vinyl, Grecian L, StaRite Dura-Glas 1 HP pump, 3/4hp booster, Pentair Clean and Clear 420 Cartridge filter
    The Pool Cleaner 4x, PoolSkim

  6. Back To Top    #6
    benavidescj's Avatar
    Join Date
    Apr 2010
    Location
    Fleming Island, FL
    Posts
    431

    Re: Phosphates - Real or Hype?

    Quote Originally Posted by Puffin
    There's nothing really magical about algae. Dealing with algae, albeit frustrating at times, just takes knowledge and understanding. I've been following this forum for awhile, everyone here tries to provide knowledge and facilitate understanding.

    Having been a fish keeper and planted tank enthusiast for years, dealing with algae is a part of life. The key is understanding. Algae is just a microscopic plant, think of it as a weed. Weeds get started because of available resources and opportunity. Resources tend to exist in nearly all media (soil, water etc...) Sometimes we add resources (fertilizer) for our plants. Other times we ignore them, such as in a rock garden or a pool. Opportunity is one of the best place to deal with them. If they never get started then you never have to deal with them. If they do get started, we beat them back vigorously and resume prevention.

    This site's approach makes perfect sense, maintain proper sanitation (prevention) and they won't get a started. If they do, shock (beat it back). By doing this we can just ignore the resources.

    My problem with addressing phosphates is twofold. First it suggests you're not maintaining proper prevention. Second, it ignores all the other nutrients (micro and macro) that plants need. When you create a nutrient deficiency you're begging for a weed infestation (assuming no prevention). Think about your lawn care, if your soil is out of balance you get give dandelions, clover, plantains, etc... the edge over your grass. Lastly we want some of those nutrients in the water. Some of us add CO2 and calcium to help manage our water chemistry. We all know plants (algae too) need CO2. (Calcium is a micro nutrient)

    Are phosphates an issue? Short answer No, not if you maintain good sanitation (as stated above).
    Puffin, well said. A great summary!
    Carlos
    Pool: 28,000 gallons IG; IC 40 SWG; Pentair 120 gpm cartridge filter; Marble finish; Pentair Wisperflow 1.5 hp; Polaris 360
    Spa: 350 gallon; Bromine
    How to shock your pool

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    Join Date
    Aug 2014
    Location
    VA Beach VA
    Posts
    4

    Re: Phosphates - Real or Hype?

    Thank you for that info!! Mine is 1500 and I've been looking for something cost effective to bring it down - now I won't worry about it.
    27,000 gallons plaster in ground with Hayward Sand Filter. The pool is older but was repainted this year.

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