Formula 500 pool and spa algaecide is effective at controlling growth of algae in swimming pools, hot tubs, decorative fountains and ponds that do not contain fish or wildlife
Helps flocculant dead algae and sediment to pool bottom for easy cleaning
Effective at any pH level
For pools showing visible algae growth, add an initial dose of 150 ml per 10,000 litres
For treatment of freshly cleaned and filled pools, add 100 ml per 10,000 litres
For continuous protection and weekly usage, add 35 ml per 10,000 litres
