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AlgaeFree Pool Blocks All Season Algaecide (1.5 Kg)

AlgaeFree Pool Blocks All Season Algaecide (1.5 Kg)

$59.99 $80.99 You save 26%
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  • Description
  • Manuals & Attachments
  • Reviews (8)

Detailed Product Description

5 Pack of AlgaeFree Pool Blocks (1.5 Kg) - Good for 3-4 Months of Treatment!

Pool Blocks all season algaecide is an extra strength, slow release solid tablet algicide suitable for all chlorine and salt water pools. Eliminating all forms of green, mustard and Blackspot algae to deliver outstanding results in harsh environments. Sold since 1978, they have become one of Australia's most sold Premium Algicide Products.

Pool Blocks are used by commercial pools, hotels and local governments to control algae. They contain more than twice the active ingredient of most standard competitor products to ensure the longest possible treatment period.

Using Pool Blocks regularly prevents Blackspot Algae and stops your pool from turning green when chlorine levels fall.


  • Blackspot, Mustard & Green Algae Killer
  • Eliminate Algae from Walls, Grouting & Steps
  • Reduce Chlorine Consumption
  • Handy Monthly Slow Release Tablet
  • Ideal for Salt or Chlorine Pools
  • Long Life Algicide for Summer and Winter
  • Makes Pool Water Sparkling Clear

Directions for use: Intial dose - place one (1) POOL BLOCK per 25,000 liters 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 ½ block per 25,000. 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.

Disposal: Do not reuse empty container. Dispose of empty container in your households recycling container. For information on disposal or unused, unwanted products, contact manufacturer or the provincial regulatory agency.

Customer Reviews

Review by Victoria Cooper on August 20, 2018

Verified Review

Great product! Keeps our pool algae free.

Review by Vanessa V on September 8, 2019

Verified Review

The best product to come along in years. Have been using it in a 16x32 inground for 3 years and not one speck of Algae in that time. Makes pool maintenance as easy as ABC.

Review by Robert R on September 11, 2019

Verified Review

Amazing product first year using this I won’t go back not a spot of algae even on the stairs where it grows usually

Review by Roma W on July 9, 2020

Excellent no algreen this year. Awesome product

Review by Carol P on July 29, 2020

Verified Review

In the past using other Algae products I have always had a few issues. This year I tried the AlgaeFree Pool Blocks. I'm ordering more right now. This year has been great, add a block & forget about it. No issues with Algae at all this year.

Review by Al R on August 3, 2020

Verified Review

Awesome product. Pools been algae free all season

Review by John W on August 19, 2020

Verified Review

Cleared up the black mold that we had. Great stuff.

Review by Jenny S on September 3, 2020

Verified Review

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