What chemical reduces excess chlorine in pool water?



Answers:
If you don't want to wait for it to dissipate on its own, add sodium thiosulfate. Can be had at pool stores.

Other answers:
Go to a pet store where they sell fish and ask them. I have some drops for my fish tank, gets the chlorine out. Or just go to a pool supply store.
Go to a pet store where they sell fish and ask them. I have some drops for my fish tank, gets the chlorine out. Or just go to a pool supply store.
Don't waste time and money with chemicals... chlorine in a pool will break down naturally in sun light, or with a rain, or just by being exposed to anything (swimmers, particals in the air, etc.). Trust me on this one. I used to work as a pool boy!
Soidum chloride
Cyanuric acid is a chlorine stabilizer, providing a chemical cloak around the chlorine molecule which protects it from the sun's UV radiation, the largest killer of your chlorine. It can be a real money saver, that cyanuric, especially during the hottest times of the year. A test kit can measure how much cyanuric acid is present in the water. Recommended levels from the National Spa & Pool Institute are at 30-50 ppm. The stabilizer (also called conditioner) is fed directly into the skimmer at a rate of 4 lbs per 10,000 gallons. It dissolves inside the filter and you will immediately see a reduction in your chlorine demand. If you are using chlorine from the iso-cyanurate family, the cyanuric acid is already present in the tablet and you shouldn't need to add any additional, unless the level is below 30-50 ppm
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