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Pool Blocks All Seasons 1.5kg

Algaefree Pool Blocks All Seasons 1.5kg

How Algaefree Pool Blocks works

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.


In an average 50,000 litre pool, add two (2) POOL BLOCKS to the skimmer basket followed by just one (1) per calendar month to provide long term protection. This unique 'once a month' application provides a constant low level of algicide all year round and an ideal 'first step' in your pool care. In larger pools around 75,000 litres simply add three (3) POOL BLOCKS initially followed by one (1) POOL BLOCK every three weeks for excellent results.

All year protection

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 contains:

5 x 300g tablets last around five months in an average pool.