Blue Horizons Ultimate Algaecide Concentrate 0.5ltr (contains copper sulphate and etidronic acid)

For the destruction and prevention of algae growth.  Can be used to kill algae or used a a weekly dose to prevent it growing.
Fast acting for quick results
Contains copper which can turn very blonde hair a green tint

Ideal for above ground pools, whole bottle will kill existing algae in up to 7,500 galls