HOTZONE is 14.2% stronger than ALGATAC and Originally formulated for the hotter areas such as Queensland in Australia and in Fiji.

Specifically designed for very serious green, black or mustard algae, very effective in hotter climates and larger heated pools. Controls serious Black Spot and Mustard Algae.

HOTZONE contains 47.6 gm/litre complex blend copper salts plus Benzyl Ammonium Chloride.

For best results:

1. Check Ph of the water and adjust to be between 7.2 & 7.6.
2. Maintain a good Chlorine level.
3. Brushing with a stiff brush will help especially with stubborn Black Spot.
4. Walk around your pool pouring HOTZONE into water with the pump running

HOTZONE will greatly reduce your chlorine requirements.