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Cyanuric Acid

March 23rd, 2003 · 3 Comments

How important is the level and how do I measure it? What does a high
level do and how can I correct it?

Tags: pumps

3 responses so far ↓

  • 1 Neva Marjory // May 11, 2004 at 2:27 pm

    Hi! Can someone explain what cyanuric acid is? We had our pool water
    tested and we were informed that our cyanuric acid level was low.
    Thanks
    Charlie

  • 2 janis_40 // May 12, 2004 at 3:57 pm

    In a message dated 4/1/2003 6:16:58 PM Central Standard Time,
    Charles.Hoover@… writes:
    Another common name is conditioner but cyanuric acid is like sunscreen for
    chlorine. It greatly slows the breakdown of chlorine by ultraviolet in
    sunlight. If you use chlorine tablets or trichlor then the cyanuric acid is
    already being replaced in your pool. If you generate your own chlorine then
    you must measure and replenish the cyanuric acid in your pool water several
    times per year.
    Ken (electricjet)

  • 3 Lina Hettie // May 20, 2004 at 12:32 am

    If you use dichlor or trichlor, I wouldnt even worry about raising
    the level because it will raise. However, be careful when raising
    your cynaric acid. The recommended range is 30-50ppms. The maximum
    is 100ppm, the minimum is 10ppm. However, as your level gets high,
    chlorine the cynaric acid bonds with the chlorine thus making the
    chlorine less effective. High cynaric acid generates a high Total
    Dissolve Solids (TDS) (all which just wrecks havoc with the balance
    of your pool water. Usually though, your cynaric acid levels don’t
    get too insanely high because you are usually losing water anyway to
    evaporation, splash out, and backwashing. The only way to lower the
    cynaric level is to drain some pool water and refill until you have
    the right level. Most health codes also require that if you are
    above 100ppm, you drain 20% of your water.

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