Lo-Chlor Long-Life Bio-Klenz Premium Strength Bio-Film Remover
Lo-Chlor Long-Life Bio-Klenz is an environmentally friendly, premium strength, concentrated liquid formulated to combat bio-film and support consistently clear, high-quality pool water as part of a simple maintenance routine.
Bio-film is the invisible build-up that forms on pool surfaces and inside circulation lines and equipment. Over time, it can increase sanitiser demand and reduce filtration efficiency. Bio-Klenz works alongside your existing pool care program by lifting this build-up from surfaces and dispersing it into the water so it can be filtered out more effectively.
The result is a cleaner pool environment with improved clarity and a more efficient overall chemical program – which can help reduce wasted sanitiser and support more efficient pool operation over time.

Features & Benefits
- Supports cleaner, clearer, healthier-looking water with consistent maintenance
- Helps reduce hidden sanitiser demand associated with bio-film build-up
- Built-in clarifying action supports more effective filtration of released contaminants
- Helps keep filters and plumbing lines cleaner over time, ssupporting more efficient circulation and filtration
- Supports longer service life of salt chlorinator cells by helping keep plates cleaner
- Supports longer service life of heaters, heat pumps, and solar systems by helping reduce overall sanitiser demand over time
- Supports pool surfaces staying cleaner and smoother with reduced build-up
- Helps reduce turbidity by lowering fine particulate load in the water
- Can help minimise common comfort issues associated with higher chemical load, such as red eye
- Suitable for all pool types and finishes
- Compatible with all recognised sanitisers and pool care programs
How It Works
Bio-Klenz targets bio-film at the surfaces and internal circulation system where it establishes itself.
- Lifts and disperses build-up: Loosens and lifts bio-film and attached particulates from pool surfaces and internal lines so they can be suspended in the water.
- Built-in clarifier action: Helps bind released contaminants so the filtration system can capture and remove them more effectively.
- Works with your sanitiser: By reducing the “workload” created by surface build-up, sanitisers can operate more efficiently on the water itself.

How to Use
- Adjust pH to 7.4–7.8 and total alkalinity to 80–120 ppm.
- Superchlorinate/shock the pool using a sanitiser or a non-chlorine shock.
- With the pump running, add the required dose directly to the pool water in front of return inlets for best dispersion.
- Monitor sanitiser levels over the next 48 hours.
Dosage & Coverage
- Quick guide: Add 1L per 60,000 litres every 4 weeks (monthly).
| Pool Volume |
Monthly Dosage |
| 30,000 L |
500 mL |
| 50,000 L |
850 mL |
| 60,000 L |
1,000 mL |
| 75,000 L |
1,250 mL |
| 120,000 L |
2,000 mL |
Important Usage & Compatibility Information
- Bio-Klenz is not a sanitiser and does not replace chlorine or other sanitation systems. Adequate sanitiser levels must be maintained at all times.
- For best results, maintain a minimum of 1.5 ppm free available chlorine (FAC) (higher may be appropriate in hot/humid conditions or with high bather loads).
- Sanitiser demand may temporarily increase after treatment due to contaminants being released into the water – monitor levels closely for 48 hours.
- A small amount of foam may appear during dosing. This is normal and temporary.
- Suitable for all pool types and finishes and compatible with recognised sanitisers and pool care programs.
- Do not overdose. Use only as directed.
- Regular water testing is recommended during use.
Additional Tips
- Cartridge filters: Hose cartridges/elements clean before dosing, reinstall, then add Bio-Klenz. The product’s surfactant qualities can help clean cartridges more thoroughly as it circulates.
- Sand or DE filters: Backwash a day or so after starting the program to remove released contaminants captured by the filter.
- You may not see debris coming from return lines – evidence the program is working is typically seen in clearer, better-feeling water.
- Indoor pools may notice improved "pool smell" as overall system cleanliness improves.
- Tile and vinyl liner pools may see gradual improvement to waterline/scum-line appearance with consistent maintenance.
Why Choose Lo-Chlor Maintenance & Cleaning Chemicals?
Manufactured in Australia and trusted across Australia, Lo-Chlor maintenance and cleaning products are formulated to make pool care more efficient – improving clarity and system cleanliness while working alongside the equipment and sanitiser program you already use. The result is practical, consistent water care with simple routines that support well-managed pools all year round.

Frequently Asked Questions
What is bio-film in a pool?
Bio-film is a thin, often invisible layer that forms when free-floating microorganisms attach to pool surfaces and then build a protective matrix. Over time it can develop on walls, floors, inside plumbing lines, and within circulation equipment.
How does bio-film form?
Bio-film formation typically starts when microorganisms lightly adhere to a surface. They then anchor more permanently, and a matrix builds as more cells attach. The bio-film grows through cell division and recruitment, and in its later stage it can release bacteria back into the water.
Why can bio-film be difficult to treat with chlorine or shock alone?
Bio-film can protect microorganisms within its matrix, which makes it difficult to treat directly using water-only treatments. It can also absorb chlorine, bromine, and shock treatments, increasing chemical demand and reducing the efficiency of normal sanitation routines.
What pool problems can bio-film contribute to?
Bio-film can be associated with issues like recurring cloudiness, persistent build-up on surfaces, and unwanted residues that can present as slime, mould, gunk, or scale in pools, spas, and hot tubs.
What’s the difference between a bio-film remover and an enzyme product?
Enzyme products are typically used to help break down organic residues (like oils and lotions) in the water. A bio-film remover is used to target the build-up that forms on surfaces and within the circulation system. Many pools use both types of products as part of an overall maintenance routine, depending on bather load and water conditions.
Will I see bio-film or debris coming out of the return lines?
Usually not. Pools don’t typically show visible debris coming from return inlets when bio-film is being addressed. Most pool owners notice the results as improved clarity, a cleaner-looking pool, and water that feels fresher overall.
How quickly will I notice results?
Many pools show noticeable improvement after the product has circulated through the system and the filter has had time to capture released contaminants. Results vary depending on the level of build-up and the current condition of the filtration system and water balance.
Can Bio-Klenz help with waterline build-up and scum lines?
With consistent use, Bio-Klenz can help keep surfaces cleaner by addressing underlying build-up that contributes to scum line appearance—especially on tile and vinyl liner pools—supporting a cleaner-looking waterline over time.
Is Bio-Klenz suitable for indoor pools?
Yes. Indoor pools can benefit from ongoing system cleanliness, and many indoor pool owners notice an improvement in overall “pool smell” as the circulation system stays cleaner with regular maintenance.
What happens if I miss a dose?
If the routine is interrupted, pools can sometimes show a decline in clarity over time. Simply resume the normal program and continue regular maintenance to restore consistent results.