Aqua-Guard Pool Products
Pool Blocks – Copper Algaecide
Pool Blocks – Copper Algaecide
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Pool Blocks are copper sulphate based algaecide pucks that are non-foaming, and kill green, mustard and black algae that grows on the walls and on the floor of swimming pools. Initially, add 1 Pool Block puck per 25,000 L of pool water in the skimmer basket. A monthly dosage of 1 puck per 50,000 L is recommended for persistent algae growth. Adjust pool water pH and maintain between 7.2 – 7.6 during treatment. Brush walls weekly when treating black spot algae. Pool Blocks are not a sanitizer and must be used in conjunction with a sanitizer. Copper Sulphate products should always be accompanied by a sequestrating agent to prevent staining and scaling.
Available Net Contents: 600g, 1.5kg
Shipping & Returns
Shipping & Returns
Free shipping over $99 in Canada. Most orders arrive within 2-4 business days - Heat Pumps excluded.
Check out our comprehensive Shipping Policy & Return Policy
Package Contents
Package Contents
Safe Handling Tips
Safe Handling Tips
- Check all lids, tops, etc., to make sure they are secure.
- Don’t let children handle.
- Never mix different pool chemicals.
- Do not store in damp areas or near heat.
- Never store chlorine and acid together.
We will NOT be responsible for damage caused by careless handling of pool chemicals after they are in your possession.
Pool Volume & Chemical Calculators
Pool Volume & Chemical Calculators
Try out our swimming pool volume and pool chemical dosage calculators to simplify your pool maintenance routine!
High-Quality Pool Care Systems for a Cleaner Pool.
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Free Shipping on Orders Over $99
Shipped to your door, free on orders over $99 in Canada on all products purchased from Aqua-Guard Pool Products.
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Aqua-Guard Alliance
Soft, algae-free, sparkling clear water, 24 hours a day! Made easy with our best-in-class water care system.
Love this product. Better than putting in liquid. I put one in with the chlorine pucks, and the pool is clear for a month.