Clean your pool filter. A clear filter is necessary to maintain proper water circulation in your swimming pool. Proper water circulation is a key weapon in the battle against algae. Take a look at your pressure gauge on the pool filter and see if the filter needs cleaning. Backwash the filter to dislodge any debris, then run the filter normally.
Switch your salt chlorinator to the super chlorination setting, which generally brings the chlorination level up to 10 times its usual level. The goal is to bring the chlorination up as high as possible as quickly as possible to kill out any algae. Leave your chlorinator on this setting for the amount of time recommended by your salt water chlorinator owner's manual.
Clean your pool. Use a brush to brush away any algae on the sides, bottom, steps and any other surfaces of your salt pool. This loosens the algae and displaces it so that it becomes easier to kill. Keep the pool in super chlorination mode with the pump powered on during this process to remove the maximum amount of algae.
Treat your water with an algaecide formulated especially for salt water swimming pools. This chemical kills algae plants and spores while preventing further outbreaks.
Run your pool pump continuously until all algae is gone from the pool and the water looks clear. This is imperative to properly removing as much algae as possible from your pool.
Use a salt water pool testing kit to test your water regularly after the outbreak is cleared up. Regular testing keeps you aware of what your chlorine levels are and whether they need to be higher or lower. Salt pool pH levels should ideally range between 7.2 and 7.6. Maintaining proper chlorine and pH levels in your pool prevents future algae outbreaks.