PoolBoss Formula 500 4 ltr (40% Poly Quat Algaecide)

Formula 500 is a superior, uniquely blended product which is highly effective in controlling the growth of fungi, greenish free-floating varieties of algae, and the so-called black algae. Formula 500 will not foam, react with chlorine or interfere with the efficient operation of sand, diatamaceous earth or cartridge filters. Formula 500 is effective at any pH level, reduces the chlorine demand of a pool and contains no copper which can stain pool walls.

• 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