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Lo-Chlor Maxi-Floc Plus

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Lo-Chlor Maxi-Floc Plus

Lo-Chlor Chemicals
Heavy-duty flocculantSettles debris to floor
1L, 5L & 20LAvailable sizes
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 — Clarifiers
Maxi-Floc Plus
Heavy-duty flocculant Very murky water Settles to floor Sand filters only
📋 How it works▾

Lo-Chlor Maxi-Floc Plus is a heavy-duty liquid flocculant that binds fine suspended particles into large clumps, causing them to settle to the pool floor within 3–6 hours where they can be vacuumed to waste — the most powerful clarification option for severely cloudy or murky pool water.

Where a clarifier works with the filter to remove particles gradually, Maxi-Floc Plus works faster and more dramatically — making it the right choice when the pool is so murky that normal clarification would take days, or when the cloudiness is too heavy for the filter to manage efficiently.

Lo-Chlor Maxi-Floc Plus details

  • Heavy-duty flocculant — binds particles and settles them to the pool floor
  • Results within 3–6 hours — significantly faster than clarifiers for severe cloudiness
  • ⚠ Sand filters only — not suitable for cartridge or DE filters
  • Vacuum settled debris to waste — bypass the filter when vacuuming
  • Available in three sizes: 1L, 5L and 20L
  • Use when cloudiness is so severe that the pool bottom is not visible

Choosing your size: The 1L is right for most residential pool emergency treatments. The 5L provides multiple treatments or suits larger pools where a higher dose is needed. The 20L is for commercial pools or service professionals.

For milder cloudiness where the pool bottom is still visible, Lo-Chlor Miraclear Liquid Clarifier is more convenient — no vacuuming required. For ongoing maintenance after floccing, the Lo-Chlor Miraclear Cube keeps water continuously clear with no effort. If cloudiness is caused by algae, treat the algae first with Lo-Chlor Pool Algaecide before floccing.

🔍 Does it suit my pool?▾

⚠ Important: Maxi-Floc Plus is only suitable for pools with sand filters. Check your filter type before use.

🏖Sand filter▾
✓ Compatible — sand filters only
Maxi-Floc Plus works by settling debris to the pool floor for vacuuming. Sand filters can be set to 'waste' for vacuuming, bypassing the filter bed. This is essential — if you vacuum floc through the filter it will cloud the water again.
🔵Cartridge filter▾
✗ Not suitable — use Miraclear Liquid instead
⚠ Maxi-Floc Plus cannot be used with cartridge filters. The settled floc clogs cartridge elements and cannot be vacuumed to waste without recirculating debris. For cartridge filter pools, use Miraclear Liquid Clarifier — it works with the filter to remove particles without settling.
🌀DE (diatomaceous earth) filter▾
✗ Not suitable — use Miraclear Liquid instead
⚠ Not suitable for DE filters. Use Miraclear Liquid Clarifier instead.
🧂Salt chlorinated▾
✓ Compatible — works with all sanitiser systems
Maxi-Floc Plus is compatible with salt chlorination. Ensure your pump can be set to recirculate and waste for the flocculation and vacuuming process.
🏊Fibreglass▾
✓ Compatible — safe for fibreglass
Safe for fibreglass surfaces. The settled floc sits on the floor and can be vacuumed without surface contact issues.
🧱Concrete / pebblecrete▾
✓ Compatible — most common use case
Concrete and pebblecrete pools are the most common application for flocculants. The settled debris is easily vacuumed from these surfaces.
💊 Dosage guide▾

Add to pool, run pump for 2 hours to distribute, then switch OFF pump and allow 8–12 hours for settling. Vacuum debris to WASTE — do not vacuum through filter.

Standard dose
200 ml
per 50,000 L
Add around pool edges with pump running. Run for 2 hours. Switch off and allow 8–12 hours to settle. Vacuum to waste.
Severely murky water
400 ml
per 50,000 L
For very heavy cloudiness. Allow 12+ hours settling time before vacuuming to waste.
⚠ Vacuum to WASTE
Set multiport to WASTE
Critical: set your multiport valve to WASTE before vacuuming floc. Vacuuming through the filter will cloud the water again.
After treatment
Backwash filter
After vacuuming to waste, backwash the filter to clear any residual floc particles.
❓ FAQ▾
What's the difference between a flocculant and a clarifier?▾
A clarifier (like Miraclear Liquid) coagulates fine particles into slightly larger clumps your filter can catch — convenient, no vacuuming needed. A flocculant (like Maxi-Floc Plus) binds particles into much larger clumps that sink to the pool floor, which you then vacuum to waste. Clarifiers are better for mild to moderate cloudiness. Flocculants are faster and more powerful for severe cases where the pool bottom is not visible.
Can I use Maxi-Floc Plus with a cartridge filter?▾
No — Maxi-Floc Plus requires a sand filter with a waste setting for vacuuming. For cartridge filter pools, use Miraclear Liquid Clarifier.
How long does it take to work?▾
The settling process takes 8–12 hours. For best results, add Maxi-Floc Plus in the evening, allow the pump to distribute it for 2 hours, then switch off overnight. By morning, debris will have settled to the pool floor and can be vacuumed to waste.
My pool is cloudy after vacuuming. What went wrong?▾
If the pool is cloudy after vacuuming, the floc was vacuumed through the filter rather than to waste. Check your multiport valve is set to WASTE, not FILTER, before vacuuming floc. Allow the water to settle again for several hours, then redo the vacuuming with the valve on waste.
Which size should I buy?▾
For a single green or murky pool emergency on a standard residential pool, the 1L is sufficient. The 5L is good value if you experience recurring cloudiness issues or have a larger pool. The 20L is for commercial pools or service professionals managing multiple pools.
Select Size
From $21.64
Lo-Chlor Maxi-Floc Plus—
$21.64

Product Information

Shipping & Returns

Description

Lo-Chlor Chemicals
Heavy-duty flocculantSettles debris to floor
1L, 5L & 20LAvailable sizes
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 — Clarifiers
Maxi-Floc Plus
Heavy-duty flocculant Very murky water Settles to floor Sand filters only
📋 How it works▾

Lo-Chlor Maxi-Floc Plus is a heavy-duty liquid flocculant that binds fine suspended particles into large clumps, causing them to settle to the pool floor within 3–6 hours where they can be vacuumed to waste — the most powerful clarification option for severely cloudy or murky pool water.

Where a clarifier works with the filter to remove particles gradually, Maxi-Floc Plus works faster and more dramatically — making it the right choice when the pool is so murky that normal clarification would take days, or when the cloudiness is too heavy for the filter to manage efficiently.

Lo-Chlor Maxi-Floc Plus details

  • Heavy-duty flocculant — binds particles and settles them to the pool floor
  • Results within 3–6 hours — significantly faster than clarifiers for severe cloudiness
  • ⚠ Sand filters only — not suitable for cartridge or DE filters
  • Vacuum settled debris to waste — bypass the filter when vacuuming
  • Available in three sizes: 1L, 5L and 20L
  • Use when cloudiness is so severe that the pool bottom is not visible

Choosing your size: The 1L is right for most residential pool emergency treatments. The 5L provides multiple treatments or suits larger pools where a higher dose is needed. The 20L is for commercial pools or service professionals.

For milder cloudiness where the pool bottom is still visible, Lo-Chlor Miraclear Liquid Clarifier is more convenient — no vacuuming required. For ongoing maintenance after floccing, the Lo-Chlor Miraclear Cube keeps water continuously clear with no effort. If cloudiness is caused by algae, treat the algae first with Lo-Chlor Pool Algaecide before floccing.

🔍 Does it suit my pool?▾

⚠ Important: Maxi-Floc Plus is only suitable for pools with sand filters. Check your filter type before use.

🏖Sand filter▾
✓ Compatible — sand filters only
Maxi-Floc Plus works by settling debris to the pool floor for vacuuming. Sand filters can be set to 'waste' for vacuuming, bypassing the filter bed. This is essential — if you vacuum floc through the filter it will cloud the water again.
🔵Cartridge filter▾
✗ Not suitable — use Miraclear Liquid instead
⚠ Maxi-Floc Plus cannot be used with cartridge filters. The settled floc clogs cartridge elements and cannot be vacuumed to waste without recirculating debris. For cartridge filter pools, use Miraclear Liquid Clarifier — it works with the filter to remove particles without settling.
🌀DE (diatomaceous earth) filter▾
✗ Not suitable — use Miraclear Liquid instead
⚠ Not suitable for DE filters. Use Miraclear Liquid Clarifier instead.
🧂Salt chlorinated▾
✓ Compatible — works with all sanitiser systems
Maxi-Floc Plus is compatible with salt chlorination. Ensure your pump can be set to recirculate and waste for the flocculation and vacuuming process.
🏊Fibreglass▾
✓ Compatible — safe for fibreglass
Safe for fibreglass surfaces. The settled floc sits on the floor and can be vacuumed without surface contact issues.
🧱Concrete / pebblecrete▾
✓ Compatible — most common use case
Concrete and pebblecrete pools are the most common application for flocculants. The settled debris is easily vacuumed from these surfaces.
💊 Dosage guide▾

Add to pool, run pump for 2 hours to distribute, then switch OFF pump and allow 8–12 hours for settling. Vacuum debris to WASTE — do not vacuum through filter.

Standard dose
200 ml
per 50,000 L
Add around pool edges with pump running. Run for 2 hours. Switch off and allow 8–12 hours to settle. Vacuum to waste.
Severely murky water
400 ml
per 50,000 L
For very heavy cloudiness. Allow 12+ hours settling time before vacuuming to waste.
⚠ Vacuum to WASTE
Set multiport to WASTE
Critical: set your multiport valve to WASTE before vacuuming floc. Vacuuming through the filter will cloud the water again.
After treatment
Backwash filter
After vacuuming to waste, backwash the filter to clear any residual floc particles.
❓ FAQ▾
What's the difference between a flocculant and a clarifier?▾
A clarifier (like Miraclear Liquid) coagulates fine particles into slightly larger clumps your filter can catch — convenient, no vacuuming needed. A flocculant (like Maxi-Floc Plus) binds particles into much larger clumps that sink to the pool floor, which you then vacuum to waste. Clarifiers are better for mild to moderate cloudiness. Flocculants are faster and more powerful for severe cases where the pool bottom is not visible.
Can I use Maxi-Floc Plus with a cartridge filter?▾
No — Maxi-Floc Plus requires a sand filter with a waste setting for vacuuming. For cartridge filter pools, use Miraclear Liquid Clarifier.
How long does it take to work?▾
The settling process takes 8–12 hours. For best results, add Maxi-Floc Plus in the evening, allow the pump to distribute it for 2 hours, then switch off overnight. By morning, debris will have settled to the pool floor and can be vacuumed to waste.
My pool is cloudy after vacuuming. What went wrong?▾
If the pool is cloudy after vacuuming, the floc was vacuumed through the filter rather than to waste. Check your multiport valve is set to WASTE, not FILTER, before vacuuming floc. Allow the water to settle again for several hours, then redo the vacuuming with the valve on waste.
Which size should I buy?▾
For a single green or murky pool emergency on a standard residential pool, the 1L is sufficient. The 5L is good value if you experience recurring cloudiness issues or have a larger pool. The 20L is for commercial pools or service professionals managing multiple pools.