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Lo-Chlor Pool Blackspot Algaecide Remover 1 Kg

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Lo-Chlor Pool Blackspot Algaecide Remover 1 Kg

Lo-Chlor Chemicals
90% Tri-ChlorGranular formula
Pebblecrete specialistDirect contact
100% Aus madeOwned & operated
Lo-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-Chlor — Algaecides
Pool Blackspot Algaecide Remover 1kg
⚫ Granular formula 90% Tri-Chlor Pebblecrete & plaster Direct to surface
📋 How it works▾

Lo-Chlor Pool Blackspot Algaecide Remover is a granular 90% Tri-Chlor treatment for eliminating black spot algae on pebblecrete, white plaster and tiled pool surfaces — the first granular black spot treatment from Lo-Chlor.

Black spot algae (cyanobacteria) has a tough protective casing that anchors into porous surfaces. The granular form is particularly effective because the granules sink and settle directly onto affected areas, maintaining concentrated contact with the algae longer than liquid treatments — essential for penetrating the protective layer.

Lo-Chlor Pool Blackspot Algaecide Remover details

  • 90% Tri-Chlor granular formula — specifically for black spot algae
  • Granules sink and settle directly onto affected areas for extended contact
  • Non-metallic — no copper staining risk
  • Not affected by high chlorine levels
  • Low pH promotes better performance — adjust to 7.2 before treatment
  • ⚠ Only suitable for pebblecrete, white plaster and tiled pools — not fibreglass

For liquid spot application on walls and steps, the Lo-Chlor Black Spot Algae Killer 1L is easier to direct precisely. Many pool owners use both — granular for pool floors, liquid for walls. After treatment, strip the phosphate food source with Lo-Chlor Starver X to prevent regrowth.

🔍 Does it suit my pool?▾

⚠ This product is only suitable for specific pool surface types. Check below before use.

🧂Salt chlorinated▾
✓ Compatible — works with salt systems
Compatible with salt chlorination. Apply directly to affected areas with pump running.
💧Traditional chlorine▾
✓ Compatible — most common use case
Designed for chlorine pool environments. Apply after super-chlorinating for best results.
🪨Mineral / magnesium▾
✓ Compatible — works with mineral systems
Compatible with mineral pool chemistry. Apply directly to black spot affected areas.
⚡Ionised / Nature2▾
✓ Compatible — non-metallic, preferred over copper
Being non-metallic, this is the preferred black spot treatment for ionised pool systems.
🏊Fibreglass▾
✗ Not suitable for fibreglass pools
⚠ Tri-Chlor granules can bleach and damage fibreglass surfaces. For fibreglass pools with black spot, use Lo-Chlor Pool Algaecide at the black spot dose rate instead.
🧱Concrete / pebblecrete▾
✓ Primary use — specialist treatment for pebblecrete
Pebblecrete is the primary application. Granules sink and settle on the affected floor areas, maintaining contact longer than liquid treatments on horizontal surfaces.
💊 Dosage guide▾

Remove automatic pool cleaners before treatment. Adjust pH to 7.2. Apply directly to affected surfaces.

⚫ Direct floor application
Sprinkle granules
onto affected area
Pour granules directly onto black spot patches on pool floor. Wait 24–36 hours before brushing.
🔁 Wait & scrub
24–36 hours
Wait then scrub vigorously with a stainless steel brush. Repeat process until algae is removed.
🔄 Maintenance dose
1 kg
per 50,000 L
Monthly maintenance dose to prevent re-establishment. Combine with Pool Algaecide monthly.
🧪 Check phosphates
Black spot returns when phosphates are elevated. Treat with Starver X after clearing the algae.
❓ FAQ▾
Granular vs liquid black spot treatment — which do I use?▾
The granular form (this product) is best for pool floors and large horizontal areas — the granules settle and stay in contact with the algae. The Black Spot Algae Killer 1L liquid is easier for walls, steps and precise spot application. For heavy infestations covering both floor and walls, use both products.
My black spot keeps coming back after treatment.▾
Regrowth is usually caused by: (1) incomplete brushing — you must scrub vigorously with a stainless steel brush to break the protective layer; (2) elevated phosphates providing a food source — test and treat with Starver X; (3) insufficient repeat treatments for heavy infestations. All three need to be addressed together.
Do I need to lower my chlorine first?▾
No — Tri-Chlor black spot treatment is not affected by high chlorine levels. Adjust pH to 7.2 before treatment for better penetration, but chlorine levels don't need adjustment.
$5.66

Original: $18.85

-70%
Lo-Chlor Pool Blackspot Algaecide Remover 1 Kg—

$18.85

$5.66

Product Information

Shipping & Returns

Description

Lo-Chlor Chemicals
90% Tri-ChlorGranular formula
Pebblecrete specialistDirect contact
100% Aus madeOwned & operated
Lo-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-Chlor — Algaecides
Pool Blackspot Algaecide Remover 1kg
⚫ Granular formula 90% Tri-Chlor Pebblecrete & plaster Direct to surface
📋 How it works▾

Lo-Chlor Pool Blackspot Algaecide Remover is a granular 90% Tri-Chlor treatment for eliminating black spot algae on pebblecrete, white plaster and tiled pool surfaces — the first granular black spot treatment from Lo-Chlor.

Black spot algae (cyanobacteria) has a tough protective casing that anchors into porous surfaces. The granular form is particularly effective because the granules sink and settle directly onto affected areas, maintaining concentrated contact with the algae longer than liquid treatments — essential for penetrating the protective layer.

Lo-Chlor Pool Blackspot Algaecide Remover details

  • 90% Tri-Chlor granular formula — specifically for black spot algae
  • Granules sink and settle directly onto affected areas for extended contact
  • Non-metallic — no copper staining risk
  • Not affected by high chlorine levels
  • Low pH promotes better performance — adjust to 7.2 before treatment
  • ⚠ Only suitable for pebblecrete, white plaster and tiled pools — not fibreglass

For liquid spot application on walls and steps, the Lo-Chlor Black Spot Algae Killer 1L is easier to direct precisely. Many pool owners use both — granular for pool floors, liquid for walls. After treatment, strip the phosphate food source with Lo-Chlor Starver X to prevent regrowth.

🔍 Does it suit my pool?▾

⚠ This product is only suitable for specific pool surface types. Check below before use.

🧂Salt chlorinated▾
✓ Compatible — works with salt systems
Compatible with salt chlorination. Apply directly to affected areas with pump running.
💧Traditional chlorine▾
✓ Compatible — most common use case
Designed for chlorine pool environments. Apply after super-chlorinating for best results.
🪨Mineral / magnesium▾
✓ Compatible — works with mineral systems
Compatible with mineral pool chemistry. Apply directly to black spot affected areas.
⚡Ionised / Nature2▾
✓ Compatible — non-metallic, preferred over copper
Being non-metallic, this is the preferred black spot treatment for ionised pool systems.
🏊Fibreglass▾
✗ Not suitable for fibreglass pools
⚠ Tri-Chlor granules can bleach and damage fibreglass surfaces. For fibreglass pools with black spot, use Lo-Chlor Pool Algaecide at the black spot dose rate instead.
🧱Concrete / pebblecrete▾
✓ Primary use — specialist treatment for pebblecrete
Pebblecrete is the primary application. Granules sink and settle on the affected floor areas, maintaining contact longer than liquid treatments on horizontal surfaces.
💊 Dosage guide▾

Remove automatic pool cleaners before treatment. Adjust pH to 7.2. Apply directly to affected surfaces.

⚫ Direct floor application
Sprinkle granules
onto affected area
Pour granules directly onto black spot patches on pool floor. Wait 24–36 hours before brushing.
🔁 Wait & scrub
24–36 hours
Wait then scrub vigorously with a stainless steel brush. Repeat process until algae is removed.
🔄 Maintenance dose
1 kg
per 50,000 L
Monthly maintenance dose to prevent re-establishment. Combine with Pool Algaecide monthly.
🧪 Check phosphates
Black spot returns when phosphates are elevated. Treat with Starver X after clearing the algae.
❓ FAQ▾
Granular vs liquid black spot treatment — which do I use?▾
The granular form (this product) is best for pool floors and large horizontal areas — the granules settle and stay in contact with the algae. The Black Spot Algae Killer 1L liquid is easier for walls, steps and precise spot application. For heavy infestations covering both floor and walls, use both products.
My black spot keeps coming back after treatment.▾
Regrowth is usually caused by: (1) incomplete brushing — you must scrub vigorously with a stainless steel brush to break the protective layer; (2) elevated phosphates providing a food source — test and treat with Starver X; (3) insufficient repeat treatments for heavy infestations. All three need to be addressed together.
Do I need to lower my chlorine first?▾
No — Tri-Chlor black spot treatment is not affected by high chlorine levels. Adjust pH to 7.2 before treatment for better penetration, but chlorine levels don't need adjustment.