How do you keep algae from taking over your pool?

I’ve had a few bad algae blooms this summer. How do you make sure your pool stays algae-free without going overboard on chemicals?
Algae is the worst! For me, the key was keeping a consistent sanitizer level instead of just dumping a ton of chemicals when things look bad. I also make sure to brush the walls regularly algae loves to hide in spots you don’t see. Oh, and I use a phosphate remover every once in a while since phosphates feed algae. Keeps things in check without having to overload the pool with stuff.
 
I hear you. I try to avoid going crazy with chemicals by focusing on good filtration and circulation first. If the water’s moving and filtering well, algae has a harder time taking hold. I also shock the pool weekly during the summer heat, but only the recommended amount, not extra. And if I catch algae early, a quick brush and a little algaecide usually stop it before it gets out of hand.
 
I feel like it’s more about the daily habits than just chemicals. Keeping the pool clean physically—brushing walls, vacuuming—and making sure the water circulates well can actually reduce how much chemicals you need. Sometimes, less is more when you keep up with the basics regularly
 
I’ve dealt with algae problems too, and here’s what usually works for me:

1. Keep your chlorine or salt system topped up but don’t go crazy with it—just enough to keep things balanced.

2. Watch your pH levels; if it’s off, algae can sneak in easier. I try to keep it around 7.2 to 7.6.

3. Run the pump every day so the water keeps moving and chemicals spread out.

4. Give the walls and floor a good brush now and then to stop algae before it sticks.

5. Sometimes I use a bit of algaecide once a week just to be safe, but not too much.

6. Don’t forget to clean the filter, if it’s clogged, algae can get through.

Doing these little things regularly really helps keep the pool clear without drowning it in chemicals.
 
I’ve had some luck with keeping algae at bay by adding a bit of salt to the pool. It seems to help with algae control and works as a natural sanitizer, so I don’t need as many chemicals. Also, I’ve found that running the pump a little longer at night helps keep things circulating, especially in the warmer months.
 
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