No. 1 in AU & NZFor algae preventionSince the 1970sUnchanged formula100% Aus madeOwned & operatedLo-Chlor is Australia’s most trusted specialist pool and spa chemical manufacturer globally recognised and exporting to 25+ countries. Their range covers algaecides, clarifiers, phosphate removers, stain treatments, stabilisers, spa care, equipment aids and more, every product formulated for Australian water chemistry and climate.Lo-ChlorAlgaecidesPool Algaecide Monthly prevention No. 1 in AU & NZ Black & green algae All pool types How it works
Lo-Chlor Pool Algaecide is the number one preventative algaecide in Australia and New Zealanda formula unchanged since the late 1970s, because it never needed to be. The 500ml bottle is a great starting size for smaller pools, or for pool owners trying Lo-Chlor’s flagship algaecide for the first time.
Originally sold as Lo-Chlor Pool Conditioner, this organic copper complex formulation kills and controls both black and green algae across all pool surfaces and sanitiser types. Its dominance in the market comes from one thing: consistent results over decades of Australian conditions.
Lo-Chlor Pool Algaecide details
- The No. 1 preventative algaecide formulation in Australia and New Zealand
- Unchanged formula since the late 1970sproven across Australian conditions
- Kills and controls both black and green algae
- Compatible with all pool surfaces and sanitiser systems
- Use monthly as a preventative, or at the first sign of algae
- This 500ml is ideal for regular maintenance on small to medium pools
For summer heat and heavy algae pressure, Lo-Chlor Tropiclear is the stronger choice. For winter close, use Lo-Chlor Winteriser Algaecide insteadone dose lasts the season. If your pool has a recurring algae problem, address the root cause with Lo-Chlor Starver X to strip phosphates before they fuel regrowth.
Does it suit my pool?
Lo-Chlor Pool Algaecide suits most pools. Select yours for specific guidance.
Salt chlorinated Compatibleworks with all salt systemsPool Algaecide is fully compatible with salt chlorinators. Add it to the pool water separately from chlorine shock, with the pump running. Allow at least 2 hours between chlorine and algaecide additions.Traditional chlorine Compatiblethe most common use caseThis is the classic application for Lo-Chlor Pool Algaecide. Monthly dosing alongside your chlorine routine provides continuous background protection against both black and green algae.Mineral / magnesium Compatibleworks with all mineral systemsPool Algaecide is safe for mineral and magnesium pool systems. It works independently of your sanitiser chemistry and does not affect mineral balance.Ionised / Nature2 Use with careconsider metal-free alternativePool Algaecide contains copper, which can interact with ionised systems that already introduce copper ions. Additional copper at low pH may cause staining. For ionised pools, Lo-Chlor Miraclear Metal-Free Algaecide is the correct choiceit’s the world’s first metal-free algaecide and includes a built-in clarifier.Fibreglass Compatiblesafe for fibreglass surfacesPool Algaecide is safe for fibreglass at recommended doses. Ensure pH is in range (7.27.6) before adding to avoid any surface sensitivity.Concrete / pebblecrete Compatibleespecially effective on black spotConcrete and pebblecrete pools are particularly prone to black spot algae. The copper complex in Pool Algaecide targets black spot effectivelyfor persistent or heavy infestations, step up to Lo-Chlor Black Spot Algae Killer for a higher-concentration Tri-Chlor treatment. Dosage guide
All doses are per 50,000L of pool water. Broadcast around the pool edges with the pump runningnever add directly to the skimmer box.
Monthly prevention250 mlper 50,000 LAdd monthly to maintain background protection. Best applied after a routine backwash. Green algae treatment500 mlper 50,000 LShock dose for visible green algae. Super-chlorinate first, brush walls, then apply. Black spot treatment750 mlper 50,000 LApply and brush vigorously before and after dosing. May require repeat treatment after 7 days. Winter maintenance500 mlper 50,000 LMonthly during winter if not using Lo-Chlor Winteriser Algaecide. Consider Winteriser for seasonal closure instead. FAQWhy hasn’t the formula changed since the 1970s?Lo-Chlor Pool Algaecide was originally sold as Lo-Chlor Pool Conditioner. The organic copper complex proved so effective that it became the market standard across Australia and New Zealand. Lo-Chlor has never needed to reformulate itthe original remains the benchmark for preventative algaecide performance.Can I swim straight after adding it?Wait at least 12 hours after adding algaecide and allow the pump to circulate fully before swimming. This gives the product time to distribute evenly through the pool.My pool keeps getting green. What’s going on?Recurring algae despite regular treatment usually means elevated phosphatesalgae’s food source. Test with the Lo-Chlor Starver Test Kit and treat with Lo-Chlor Starver X if levels are high. Once phosphates are removed, algaecide performance improves significantly.Will it affect my pool water balance?NoPool Algaecide does not affect pH, alkalinity or calcium hardness. It has no impact on chlorine levels and is compatible with all sanitiser systems.I have black spot. Is this the right product?Pool Algaecide treats mild black spot. For heavy or persistent black spot infestations, Lo-Chlor Black Spot Algae Killer is a higher-concentration Tri-Chlor formula specifically designed for this algae type and works by direct contact with affected surfaces.See also Tropiclear Algae Knock-Out Winteriser Miraclear Metal-Free
