Each year when I open my pool, the chlorine demand is very high. This year I needed 41 lbs of shock. The water is balanced when the pool is closed and is covered the whole off season. I do not have any contaminants entering the pool. Can you give me any ideas?
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Without a full water analysis and more information about the swimming pool, it is difficult to diagnose. The swimming pool should be shocked at least once every 7-10 days. You would likely be using 1 bag per 10,000 gallons of pool water. Aside from that I would recommend checking the cyanuric acid level as an imbalance can cause the swimming pool to use more chlorine.
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My chlorine always seems to be low no matter when I test it. What can cause this?
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I would recommend checking the Cyanuric acid levels and adjusting if necessary. Cyanuric acid (conditioner) protects the chlorine from being burnt out by the sun.
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If I'm not getting a Cyanuric Acid reading with my test, does that mean there is no conditioner in the pool?
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Things such as temperature, pH, alkalinity and calcium can cause false readings. Your best gauge for determining whether you have sufficient Cyanuric Acid levels is whether or not your pool is holding proper chlorine levels.
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the cyanuric acid level is always reading very high in my pool. What are the consequences of a high reading?
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Joseph, The first issue would be the efficacy (effectiveness) of the chlorine to act as a disinfectant. Higher levels will bind with the chlorine, making it slower acting to kill bacteria and micro-organisms, and prevent algae. Higher levels will also increase cloudiness in the pool water. At this point, it would be recommended that a portion of the pool water be replaced with fresh water, as there are no other means of reducing the cyanuric acid in pool water.
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how do u reduce cyanuric acid in pool water
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Hi. Howard. The most effective way to reduce the Cyanuric Acid in a pool is to partially drain it. They are some products that can reduce the CYA in a pool but unsure of their effectiveness.
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how can I consistently chlorinate my pool without exposing it to the ridiculously high concentrations of Cyanuric acid contained in virtually ALL chlorination tablets?
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Liquid chlorine and bleach does not contain much if any stabilizer. Most granular forms of chlorine are unstabilized as well.
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HOW MUCH STABILIZER FOR NEW FILL OF 25,000 GAL POOL AND WHAT ELSE IS NEEDED ?
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Hello, so the amount of stabilizer needed to be added to a swimming pool will depend on the current cyanuric acid level. Here is a guide that we put together called "Stabilizing Your Swimming Pool" that should assist.
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