Algae in an Above Ground Swimming Pool


September 16, 2010

A rubber duck floating in a swimming pool.I have an above ground pool. Can I use household bleach to kill algae? My pool is overrun with green algae. Thanks.

By leveman3 from Lebanon, TN



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September 18, 20100 found this helpful
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No on chlorine bleach! It's not healthy for humans or the environment! Go to your local pool supply company and ask them what products you need to get rid of the algae and what products for maintenance thereafter. They also carry long poles with special pads on them that you run along the bottom and side pool surfaces that help loosen the algae and should also be used for regular maintenance.

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September 18, 20100 found this helpful
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Never mess around with chemicals, unless your pool dealer has them in stock. The first step is to bring a sample of your water to determine the right course to clean up the algae, or other problem you may have. Otherwise you are making a possible toxic soup which may harm humans, or destroy the pool. Trying to save a few dollars may cost bigger bucks in the end. I have a friend whose well meaning, but clueless husband "dumped" every product they had bough for the pool, all at once!


He figured this would keep the pool clean while they went on vacation. Upon returning home the pool was like a bubble bath, and not usable for several weeks after. Then an algae problem developed and that was the end of the pool season. I check my water every other day, and if something needs to be added I do it then. Always read the instructions as to the amount and how to use it etc. Good luck to you!

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2 More Questions

Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

August 19, 2019

I am constantly getting green and cloudy water in my pool. I shock and algaecide about once a month. Lately every 3-5 days I run the filter 12 hrs a day.

The last two weeks I have also been adding Clear View and also vacuuming about 2-3 times a week and then backwash after vacuuming.


Gold Post Medal for All Time! 677 Posts
August 19, 20190 found this helpful

Chlorine will get rid of the algae.

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August 19, 20190 found this helpful

There are tons of questions Id have to ask prior to giving a solid answer on this one. Questions regarding chemistry, pump, frequency of chemicals, etc.


My best TIP: Do not buy chlorine from big box stores. Its old and overpriced. Always get it from your local pool supply store. Also be sure to store it properly. Have you tried liquid chlorine?
Algae is tough to combat. It thrives in still water and in warmer temperatures. When you shock it do you let the pump run for at least 12 hours? That is crucial! The algae settle to the bottom by this point.
So add your liquid chlorine.
After 12 hours of the pump running, let it sit still for a few hours and then vacuum it (preferably into your yard).
Then you want to clean the filter.
Youll still need more chemicals to rid your system of the dead algae.
Check your chlorine level the next day and repeat the above but try to keep your chlorine level steady and consistent.

Once everything is good you just have to stay on top of it.

Have you ever drained the pool and started fresh?

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August 19, 20190 found this helpful

I second what kdaniels says that this is not an easy answer.

When you are buying your supplies from your local pool supply place, talk to them and get their suggestions to resolve this issue.

We have been having so much rain in my area that everyone with pools is having issues. They can keep their pools clean until the next storm and then it all starts over again. One friend said covering the pool helped, but that isn't always an option.


Post back what you learn as your info may be better than what my friends are getting around here!

Good luck!!

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Bronze Post Medal for All Time! 105 Posts
August 19, 20190 found this helpful

You have a chemical inbalance in your pool and need to test your water with a test kit. The test dit will help you determine how much more chemicals you will need to add t othe water to get rid of your algae problem. I have a small above ground pool and holds around 900 gallons of water. I do not use chemicals in the pool because it is not that hard to change the water once a week. I do find that adding some vinegar to the water during the real warms months of the years helps to control the algae longer and I do not have to emapty and change the pool so often. I know it sounds bad to most people to dump 900 gallons of water once a week. However, where I live is in the topics and the amount of rain we receive here makes it possible for me to do just that.

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September 16, 2010

We have a very large above ground swimming pool. Does any one know how to get them clean after algae has gotten in? We have used Shock It and chlorine and clarifier. Still green. Sharyl

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