Every year, I open the pool in May. About a month before opening, the pool turns green and I have a 1-2 week fight getting it crystal clear after I open. Is there anything I can do to prevent this? A little chlorine or algaecide pre-opening?
Prevent algae before pool opening?
- Thread starter Joshii
- Start date
You can start circulating water and add fc as if opening. With the GDP method fc is what kills algae. And an early start may stop it before it gets a hold in your pool. Remember to brush walls also
- Jun 22, 2014
- 47,908
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
The formula for opening is simple really - the sooner the better. While the water may still be chilly, the sooner you increase the FC level (and confirm other levels) to begin circulation/cleaning the better. Adding an algaecide after the water has begun to change color would be useless, and depending upon the algaecide used, could cause more problems later (copper). Open early, start water circulation, and adjust chemicals so the water can bounce-back is your best bet. 
Yep they have it right, I'm in New York and when I had an intex pool I would open it in April to prevent algae growth. The earlier the better