AlgaeFree Pool Blocks, 5 Pucks, 1.5kg


Price $68.99
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AlgaeFree Pool Blocks, 5 Pucks, 1.5kg
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195 Exeter Rd, London ON, Canada
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Pool Blocks all season algaecide is an extra strength, slow release solid tablet algaecide suitable for fibreglass and vinyl liner pools using chlorine or saltwater. This product eliminates all forms of green, mustard and blackspot algae to deliver clean, sparkly results. Pool Blocks are used by commercial pools, hotels and by local governments to control algae in water sources. This product contains more than twice the active ingredient of most standard competitor algaecide products to ensure the longest possible treatment period. Using Pool Blocks regularly prevents black spot algae and keeps your pool water sparkling clear.



  • Blackspot, Mustard & Green Algae Killer
  • Eliminates algae from walls, grouting & steps
  • Reduce chlorine consumption
  • Handy monthly slow release tablet
  • Ideal for salt or chlorine pools
  • Long life algaecide for summer or winter
  • Container size: Five (5) 300g blocks, 3-4 months treatment for 25,000 litre pool


Directions For Use:

  • Initial dose - place one (1) pool block per 25,000 litres of pool water in the wire basket when the pump is running
  • If algae persists, a monthly maintenance dose of one block per 50,000 L or block per 25,000 is required
  • Adjust pool water pH and maintain between 7.2-7.6 during treatment
  • Brush walls weekly when treating blackspot algae
  • Use in conjunction with chlorine or an approved bactericide when swimming
  • Do not contaminate irrigation or drink water supplies or aquatic habitats by cleaning of equipment or disposal of waste
  • Do not reuse empty container



AlgaeFree Chemicals come with a 30 Day Limited Manufacturers Warranty.

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