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Goodbye Algae: How to Keep Your Pool Algae Free

Learn about how you can prevent algae from growing your pool.

Algae is a common problem for pool owners. The best method for keeping your pool free of these spores is to prevent them from occurring in the first place. This is usually done by maintaining consistent levels of chlorine in your pool through daily testing and chlorination. However, sometimes despite your best efforts, algae finds its way into your water. The telltale signs are green water or visible growth on the sides of the pool. If you see these signs, it is best to treat the pool as quickly and thoroughly as possible to get rid of the algae right away and prevent it from returning. We've got the steps you need to take to say goodbye to algae once and for all.

Clean Your Pool

Before applying any chemicals to your water, skim the pool and brush the sides and floor. This process will remove debris that may interfere with the sanitizing process. Brushing the sides and floor breaks up the algae so it is easier for the algaecide to do its work.

Apply an Algaecide

To know which type of algaecide is best for your needs, contact a swimming pool specialist. There are three different types of algae that can form in a pool: green algae, mustard algae and black algae. Green algae is the most common, while black algae is the most difficult to get rid of completely. By identifying the type of algae in the pool, you can find the best algaecide for your purpose.

When you apply the algaecide, it is a good idea to put your pool tools in the water for a soak in the solution as well. Otherwise, you might find that your brush or skimmer puts spores back into the pool at your next cleaning, leaving you to begin the process all over again. Give the algaecide at least a day to work in your pool. You should also use a maintenance algaecide after this initial treatment to keep algae at bay. Note that the two algaecides may be different formulas, so ask your pool specialist about the best choices for your pool.

Shock the Pool

Once the algaecide has finished its work, it's time to shock the pool. A chlorine shock treatment raises the chlorine level in your pool above what is considered the normal range to kill residual algae and bacteria. As you are shocking your pool, run the filter system and be sure to backwash it after treatment. Cartridge filters should also be changed after treatment.

After the shock treatment is complete, brush the pool walls one more time to ensure all the algae is gone. You may need to repeat brushing daily for a period of time to ensure the algae doesn't return, especially if you have a particularly stubborn type of algae to get rid of. Continue to test your water regularly as well, to maintain a high enough chlorine level to keep future algae outbreaks at bay. By following these steps and sticking to a strict maintenance schedule after treatment, you can say goodbye to algae for good.