- are non-foaming algaecides sold in concentrations of 30 to 60%

While more costly than quats, polyquat algaecides are very effective against all types of algae

Because they contain quaternary ammonium salts at such high concentrations, polyquats are not only effective against green algae, but also against Chlorine-resistant mustard algae and the notoriously tough and stubborn black algae

Polyquats are very effective at destroying an existing algae infestation, unlike simple quats, which are used as algaestats for preventative purposes


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Andalusia and the Costa del Sol - Pool Safety SpainPool Safety Spain

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Ken Walker - MyPoolGuru©