What’s the best way to control algae in my pool?

C

Carlos

New member
I’ve noticed some greenish patches starting to form in my pool, and I’m worried it’s algae, can anyone share their experience with algae control and what products or steps work best?
 
I had the same issue last summer! I found that regular brushing helped a lot to remove algae from the walls, but using an algaecide really made a difference. I also shocked the pool to kill any stubborn algae, and it cleared up pretty quickly. Keeping the chlorine levels consistent is key too. Have you tried an algaecide yet?
 
I usually check the chlorine and pH levels first because algae tends to pop up when they’re off balance. Also, don’t forget to brush the pool regularly, especially the harder-to-reach spots. Algae love stagnant areas.
 
Carlos said:
I’ve noticed some greenish patches starting to form in my pool, and I’m worried it’s algae, can anyone share their experience with algae control and what products or steps work best?
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Yeah, green patches usually mean algae starting to settle in. I’d start by brushing those spots really well and shocking the pool to knock it back. After that, I use a good quality algaecide once a week as a preventative. Also, make sure your filter is clean and running enough so it can catch the spores before they spread.
 
I had the same problem last summer. For me, the key was keeping the water balanced—pH, alkalinity, and chlorine all in check. I used a copper-based algaecide, which seemed to do the trick on stubborn green algae. And don’t forget to clean out your skimmer basket and vacuum regularly, algae love hanging out there!
 
Carlos said:
I’ve noticed some greenish patches starting to form in my pool, and I’m worried it’s algae, can anyone share their experience with algae control and what products or steps work best?
Click to expand...
Yep, green patches usually mean algae’s starting to take hold, especially if the water’s been a bit off lately. I’ve dealt with it a few times, and here’s what worked for me:

  1. Brush the pool walls and floor thoroughly to break up the algae and get it into circulation.
  2. Shock the pool : don’t go light here. Use a quality chlorine shock and follow the dosage for your pool size.
  3. Run your pump continuously for 24–48 hours after shocking to keep everything moving.
  4. Once the chlorine levels settle, add an algaecide as a preventive step. I’ve had good results with polyquat-based products, they’re less harsh but still effective.
  5. Test and balance your water after clearing it up, especially pH and alkalinity. If those are off, algae is more likely to return.

Staying on top of water balance and circulation is key to keeping algae away long term.
 
I’ve been there too! Another trick I found helpful was keeping the pool a bit warmer and ensuring the pool’s pump runs for longer. Algae loves cooler water, and with the extra circulation, it makes it harder for them to settle. Also, maybe try using a pool cover at night to avoid overnight debris gathering.
 
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