Pool blocks are a unique and highly effective long term treatment with five 300g tablets in each 1.5 Kg pack. The active ionic copper is strongly chelated to ensure the longest possible treatment period and avoid reactions with other chemicals.
Pool blocks contain a unique blend of food grade ingredients which make them far more effective at lower concentrations. When used to directions, the water is treated at less than Australian Standards for Private Swimming Pool Water Quality and drinking water standards.
Pool blocks eliminate all forms of green, mustard and blackspot algae in all fibreglass, vinyl, tiled, painted and pebble swimming pools. Once all algae is eliminated from the pool, less chlorine is needed to maintain sanitiser levels as the chlorine is free to perform it's principal task of killing bacteria. Salt chlorinator and filter running times are reduced saving electricity as the water stays sparkling clear as all algae is eliminated even if the chlorine level falls.
The key to pool blocks is that the pool is protected from algae all year round as a first line of defence as algae problems occur readily in untreated pools. Chlorine is a short term treatment to kill bacteria and lost within hours, leaving pools exposed to algae growth. Research shows that a low level of free chlorine is more effective in combination with an algicide, than chorine alone. For best results, keep the pH 7.2 and 7.6, which is a simple task in most pools where surfaces are pH neutral.
Pool blocks 1.5 Kg container and last around five months in an average pool.