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Black Algae In Pool


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See Black Algae. You need to elevate the FC/CYA ratio which, if your CYA is high, means partial drain/refill to dilute the water to lower the CYA. You also need to brush the pool and if it's plaster use a stronger brush to break off the heads and get the roots exposed to elevated chlorine levels. For just a few spots of algae, a Trichlor puck on top of it will help (after brushing) but be careful since that can leave a mark and for sure you don't do that with a vinyl liner.

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Black algae is the most difficult to deal with. It is not infectious, but if you will not care, then it gives you some negative consequences like water turns cloudy or green, It also smells bad. This problem could be sorted out if you will Sanitize the Pool Water regularly, giving it a shock treatment by adding more chlorine, using a high quality pool filter, replace filter cartridge when needs.

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Hi Johnson, I think preventing bacteria at the early stage is better than destroying it after it has formed to algae. It is, of course, unpleasant to watch an algae affected pool in your backyard. I just saw this informative blog which could really help pooI beginners. http://www.soldapools.com/blog/swimming-pool-tips/remove-black-algae-pool/  I also have a pool and I took the following 3 measures to keep my pool free of black algae.

  1. Scrub with a steel bristle brush

  2. Shock with granular chlorine

  3. Add some metallic algaecide.

Hope this could help you.

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