emergency 5 min read

Why Is My Pool Green After a Storm?

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Ocean Melody Pools
green pool algae storm hurricane season

A pool can go from clear to green in two or three days in Southwest Florida, and storms are the most common trigger.

Why storms turn pools green

  1. Rain dilutes your chlorine. A few inches of rain can drop chlorine to near zero.
  2. Debris brings nutrients. Leaves, pollen, and dirt feed algae.
  3. Power outages stop circulation. Without the pump running, water stagnates.
  4. Heat speeds everything up. Warm water lets algae multiply quickly.

What to do right after the storm

1. Make sure the equipment is safe

If your equipment pad flooded, keep the power off and have it checked before you restart. If it is dry, turn the pump back on as soon as power is back.

2. Remove debris

Skim leaves and empty skimmer and pump baskets. Clogged baskets starve the pump of water.

3. Lower the water if it is overflowing

If rain pushed the level over the skimmer, lower it to the middle of the skimmer opening.

4. Test and shock

Test chlorine and pH. If chlorine is low and the water is turning, it needs a heavy shock and continuous filtration.

When to call a pro

If the water is already green or you cannot see the floor, you will usually need a full green pool cleanup: shock, brushing, vacuuming, and a filter cleaning so the algae does not come right back. Dead algae clogs filters fast.

If the pump will not start after the storm, we can diagnose it with an equipment repair visit.

Prevent the next one

Customers on our weekly pool cleaning plan get a post-storm check as part of their route, and we adjust chemistry before algae has a chance.

Pool turned green in Sarasota or Venice? Call (941) 735-2711 and we will get it blue again.

Need Pool Help?

If you have a pool question or need to schedule a service call, our team is ready to help. We serve Sarasota and all of Sarasota and Manatee Counties.