Algae Remover - Stone King 5 Litre

Patio Black Spot Removal

Algae Remover - Stone King 5 Litre

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Algae Remover - Stone King

Tired of hard surfaces turning green? Use Stone King Algae Remover to effortlessly remove algae and prevent surfaces becoming slippery. This simple spray and leave treatment is the ideal maintenance product for every home. The Stone King Algae Remover can be used on fences, conservatories, decking, patios and paths.

Why Stone King?

  • Deep cleaning action that breaks down algae within a few days of application

  • Makes surfaces safer by removing slippery buildup

To apply Stone King, you’ll need:

  • A pump-up garden sprayer

  • Water supply - This product must be diluted

Simply spray, and relax. Within days, algae will disappear. 

How to Use Algae Remover

1.
Prepare Your Sprayer
. Pour StoneKing® Algae Remover into a 5–7 litre pump-up garden sprayer.

2.
Dilute with water
. Dilute one litre of Stone King with 3 three litres of water. 4 Litres of Stone King diluted will cover 20 square metres (4m x 5m). Total coverage 100 square metres.

3.
Start spraying
.  Build up the pressure of the sprayer and begin spraying all green areas with StoneKing® , saturating the surface thoroughly.

4.
Let it Work
.  Allow the product to dry. You will notice results within two days and see a gradual improvement over a five-day period.

5.
Repeat if Needed
.  If any green remains, simply re-treat the process.

Frequently Asked Questions

Yes. Dilute 3/1 with water and apply using a pump-up garden sprayer.

Each 5-litre container will cover 100 square metres once diluted.

No, the Stone King Algae Remover does not expire.

Stone King Algae Remover will remove green algae that grows during wet periods. It may brighten up the patio in places but if you’re looking for a transformational product, try Patio Black Spot Remover instead.

The Stone King Algae Remover will not Prevent black spots from growing. You’ll need to use the Patio Black Spot Preventer for this annually.

Patios, paths, your home, fences, conservatories, decking & composite decking.

Yes, Stone King algae remover is safe to use in the garden and pet safe. We recommend you keep pets off the area until it is dry. The product will dry within 30 minutes of application.

How do I remove algae from patios?

To remove algae from patios, apply a stone-safe algae remover evenly over the affected area and let it sit as instructed. The solution breaks down algae within days of application without the need to persistently pressure wash. Avoid acidic cleaners, which can damage stone or paving surfaces.

How long does algae remover take to work?

Effectiveness depends on the severity of algae, but most algae removers designed for stone or patio surfaces begin to show results within hours to a day. For thick algae build-up expect to wait longer or possibly repeat application. Always follow manufacturer instructions for dwell time and allow to dry before allowing pets back on the area.

What’s the best way to stop surfaces turning green?

The best way to stop surfaces turning green is to ensure patios and paths have adequate drainage. Patios should be designed and levelled correctly so water runs off into nearby flower beds. Areas that puddle will turn green quickly, especially in shaded areas. Maintain regular cleaning and treat periodically with an algae-removal product designed for patios. Remove leaves and debris promptly and trim overhanging plants.

How can I make my decking less slippery?

To make decking less slippery, remove algae and build-up using a suitable algae remover, then rinse thoroughly and allow the surface to dry completely. Regular cleaning and treatment break the moisture-retaining film that causes slipperiness. For wood decking, consider adding anti-slip coatings if appropriate, but always confirm compatibility with the surface material.

Can I use algae remover on fences?

Yes, algae remover intended for patios can often be used on external fences, provided the material is suitable for the product. This generally includes wood, composite and other common outdoor surfaces. Always test a small hidden area first and avoid using it on freshly painted or sealed fences unless the product confirms it is safe.

Can algae remover be used in winter?

Yes, algae removers should be used in the winter months over a period of a few days when rain is not forecast. Performance may be slower if it rains after application. Cold, damp conditions may reduce effectiveness and require a second treatment once weather improves. For best results, apply when temperatures are above 5 degrees and surface is dry.

Is algae remover better than pressure washing?

Algae remover and pressure washing serve different purposes. Pressure washing removes surface dirt and light algae staining from the surface. If the patio is clean but green algae has appeared in shaded areas, an algae remover is the preferred option instead of constantly pressure washing stone surfaces. Constant and aggressive pressure washing is not recommended on any type of stone. Algae removers are more effective for long-term control.

Is algae remover safe for pets once dry?

When used as directed, a Stone King Algae remover is typically safe for pets once the surface is dry and thoroughly rinsed. Always check the product instructions for clearance times and ensure the area is dry before allowing pets back onto the area. During treatment and prior to rinsing, restrict access to pets and children.

Can I use algae remover on painted fences?

You can use Stone King Algae Remover on painted fences. Some algae removers can strip paint or affect sealants. If in doubt, test a small, discreet area first and rinse thoroughly. For painted surfaces, gentler cleaning methods may be safer unless the algae product explicitly states it’s suitable.

Can algae remover be used on block paving?

Yes, algae remover by Stone King can be used on block paving to treat algae and help protect the blocks against other green matter. Apply evenly, let it dry, no rinsing required. Follow up with regular sweeping to keep paving looking clean. Stone King Patio Restorer & Cleaner to restore the natural colours of the blocks.