Active Multi-Stain Removal for Pool & Spa Surfaces
Lo-Chlor Multi Stain Remover is a powerful, triple-action stain treatment formulated to actively remove stubborn metallic and organic stains from swimming pool and spa surfaces.
It is used when staining is already present, targeting common discolouration caused by dissolved metals such as iron, copper, and manganese, as well as organic staining from algae, leaves, and environmental debris.
This product forms the first step in the Lo-Chlor Stain Busters system — lifting stains from the pool surface so they can then be managed and prevented from returning with the appropriate follow-up treatments.
Features & Benefits
- Removes metallic stains – targets iron, copper, manganese, and rust discolouration.
- Removes organic staining – effective on algae stains, leaf stains, and mould marks.
- Triple-action formulation – blend of acids designed to lift a wide range of stain types.
- Suitable for full-pool or spot treatment – can be applied broadly or to localised problem areas.
- Works on most pool surfaces – suitable for fibreglass, plaster, tiled, and vinyl pools when used correctly.
- Forms part of a complete stain management system – designed to be followed by metal control to reduce re-staining.
How It Works
Multi Stain Remover works by breaking down and dissolving insoluble stain deposits that have formed on pool surfaces.
The acid-based formulation reacts with metal oxides and organic residues, lifting them from the surface and bringing them into solution. Once the stain is released, it is no longer visible on the pool interior.
Because the dissolved material remains in the water after treatment, follow-up metal control is essential to help prevent re-oxidation and the return of staining.
How to Use
- Before treatment, reduce free chlorine to zero and ensure the filter is clean.
- With the pump running, apply the product evenly around the pool or treat stained areas as directed.
- For spot treatment on vinyl liners or delicate surfaces, place the product in a sock or pantyhose and suspend over the stain.
- Allow the product to circulate while stains lift from the surface.
- Once staining has been removed, apply a suitable metal control product to manage dissolved metals.
Dosage & Coverage
- Standard dose: 1 kg per 50,000 litres of pool water.
- Dose rates may vary depending on stain severity and pool surface.
Important Usage & Compatibility Information
- Avoid applying directly to vinyl liners or painted surfaces — pre-dilute or suspend for spot treatment.
- High chlorine levels reduce effectiveness; chlorine should be lowered before use.
- This treatment will reduce pH and total alkalinity.
- After treatment, rebalance water slowly to avoid clouding or re-depositing stains.
- Best used as part of the Lo-Chlor Stain Busters system, followed by metal control.
This product is classified as Dangerous Goods. Handle with care, avoid contact with skin and eyes, and keep out of reach of children.
Why Choose Lo-Chlor Stain Busters?
Lo-Chlor Stain Busters is a specialised range developed to manage the many different types of pool and spa stains — because no two stains behave the same way.
Rather than relying on a one-size-fits-all approach, each product in the range targets a specific cause, from active stain removal to long-term prevention and control.
Manufactured in Australia and trusted by pool professionals, Lo-Chlor Stain Busters treatments are designed for real-world pool conditions, supporting cleaner surfaces, clearer water, and smarter ongoing pool care.
Frequently Asked Questions
How do I work out what type of stain I have?
Pool stains aren’t always obvious — the same stain can look different depending on the surface, lighting, and water conditions. The most reliable approach is to test the stain before choosing a treatment.
If you’re unsure, start with a small spot test (below) and treat a small area first.
What’s the simplest spot test to tell metal stains from organic stains?
Always test a small area first:
- Vitamin C test (metal): Place a vitamin C tablet (ascorbic acid) in a thin sock and hold it on the stain for 1–2 minutes. If it lightens, it’s likely metal-related (commonly iron).
- Chlorine test (organic): Place a small amount of granular chlorine (or a chlorine tablet) in a sock and hold it briefly on the stain. If it lightens, it’s more likely organic (algae/leaf staining).
If neither test changes the stain, it may be scale, oxidation, or a surface-specific issue that needs a different approach.
Is it a stain, scale, or surface oxidation?
- Scale is a mineral deposit (often calcium) that usually looks chalky or milky and can feel rough, like sandpaper.
- Oxidation can give fibreglass or painted surfaces a dull, milky, or chalky look (often linked to water balance and sanitiser management over time).
- Stains are colour changes on the surface and can be small patches or cover large areas.
Correct identification matters because different causes respond to different treatments.
Where do metals in pool water usually come from?
Metals can enter pool water in several common ways, including:
- Salt additions (salt can contain trace metals such as iron).
- Top-up water, especially bore or mineral-rich water (iron, manganese, copper).
- Long-term use of some liquid chlorines (trace metals can build up over time).
- Metal-based algaecides (often copper-based).
- Metal fixtures (more common in some above-ground pools).
- Runoff and garden dirt after heavy rain or hosing near the pool.
Why do stains sometimes come back weeks after treatment?
With metal staining, lifting the mark from the surface is only part of the process. The metal can still be present in the water and may re-oxidise and re-deposit later if the source isn’t addressed.
For longer-term results, focus on both:
- Managing the cause (top-up water, salt additions, runoff, metal-based products), and
- Ongoing prevention with the appropriate Stain Busters product for your stain type.
Do I need to adjust chlorine before using stain treatments?
Some stain treatments work best when chlorine levels are reduced from elevated or shock conditions. High chlorine can reduce the effectiveness of certain stain removal processes.
Follow the directions on the specific Stain Busters product you’re using, and avoid shock dosing immediately before stain treatment unless the label instructs otherwise.
What should I do before and after stain treatment for best results?
- Test first: Identify the stain type with a small spot test and treat a small area before committing to a full treatment.
- Circulation matters: Run the pump to help distribute treatment evenly and support filtration.
- Keep water balanced: Stable pH and alkalinity help reduce re-deposit risk and support consistent results.
- Clean filtration: Ensure the filter is operating efficiently (backwash/clean if needed) so the system can capture and remove what it can.
Is Stain Busters suitable for all pool surfaces?
Stain behaviour can vary by surface type (fibreglass, plaster, tiled, vinyl, painted). Always treat a small area first and follow product directions.
For vinyl (especially patterned liners), take extra care with spot treatments using chlorine, as prolonged contact may bleach the surface.
Can I combine stain products or add them together?
Avoid adding multiple chemicals at the same time. Do not pre-mix products in a bucket.
Add one product, allow it to circulate, then retest and follow the label before adding anything else. This helps prevent unwanted interactions and keeps treatments more predictable.
