Polymer (polyquat) long-life pool algaecide that prevents green, mustard and black algae across an 8-week dose. Non-foaming, copper-free and safe for all pool surfaces.
Initial dose at start of season or after partial drain. Maintenance dose weekly to fortnightly. Drop dose by half on covered pools.
Poly[oxyethylene(dimethyliminio)ethylene-(dimethyliminio)ethylene dichloride] at typically 50% w/w, the long-chain quaternary ammonium polymer known as polyquat.
The polymer disrupts algal cell membranes by electrostatic adsorption, killing the cell without consuming chlorine. Its long-chain structure resists rapid breakdown, giving weeks of preventive cover.
Chlorine alone struggles to keep algae out of shaded corners and during heatwaves. A polyquat layer underneath chlorine cuts algae demand and lets chlorine focus on bacteria.
Initial dose lasts 6-8 weeks; maintenance dose covers 1-2 weeks each.
Light blooms yes; heavy bloom needs a chlorine shock first then polyquat as a follow-up preventer.
No. Polyquat is non-foaming, suitable for aerated jets and water features.
1 L, 5 L and 25 L drums.
Yes. No copper, no metal staining, safe for plaster and hair.
Around 12-15 maintenance doses for a typical 40 m³ pool, or one season of fortnightly dosing.
Polymeric quaternary ammonium chloride (polyquat) at 50% w/w.
Quaternary ammonium algaecides foam; the long-chain polymer form does not, because the active surfactant chains are bound into the polymer backbone.
No. Polyquat works independently of the chlorine bank, freeing chlorine for bacteria.
Check you have not mixed in a quat-based algaecide; polyquat alone does not foam.
Brush more, increase dose, check circulation reaches all corners.
Polyquat is staining-safe and non-foaming; copper kills mustard algae faster but stains plaster and lightens hair.
Polyquat is the polymer version; non-foaming, longer lasting. Standard quats foam under aeration.