Algae Remover - Stone King 5 Litre

Patio Black Spot Removal

Algae Remover - Stone King 5 Litre

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Algae Remover – Stone King

Eliminate Green Algae and Restore Safer Outdoor Surfaces

Green algae can quickly make patios, paths and other outdoor surfaces look untidy and become dangerously slippery, particularly in damp or shaded areas. Stone King Algae Remover is a professional-strength, spray-and-leave treatment that breaks down algae without the need for scrubbing or pressure washing.

Simply dilute, apply the product, leave it to work, and let nature do the rest. Over the following days, the algae gradually breaks down, restoring the appearance of your outdoor surfaces while helping to reduce slippery build-up.

Perfect for regular maintenance throughout the year, Stone King helps keep your outdoor spaces cleaner, safer and easier to maintain.

Why Choose Stone King?

·       Professional-strength spray-and-leave algae treatment

·       Breaks down green algae without scrubbing

·       Helps prevent slippery surfaces caused by algae build-up

·       Ideal for regular maintenance of outdoor hard surfaces

·       Easy to dilute and apply using a garden sprayer

·       Gradual results over several days with minimal effort

Ideal For

Stone King Algae Remover is suitable for use on a wide range of exterior surfaces, including:

·       Patios

·       Garden paths

·       Decking

·       Fences

·       Conservatories

·       Walls

·       Driveways

·       Brick Paths

·       Outdoor steps and other hard surfaces

Why Does Algae Keep Coming Back?

Algae thrives in damp, shaded areas where moisture remains on the surface. Over time, it creates an unsightly green coating that can become slippery when wet.

Regular treatment with Stone King Algae Remover helps control algae growth, making routine outdoor maintenance quicker and helping to keep patios and paths looking their best throughout the year.

Easy to Apply

You'll need:

·       A 5–7 litre pump-up garden sprayer

·       Clean water for dilution

Simply dilute, spray evenly across the affected area, then leave the product to work. There's no scrubbing or rinsing required.

How to Use Stone King Algae Remover

Step 1 – Prepare Your Sprayer

Pour Stone King Algae Remover into a clean 5–7 litre pump-up garden sprayer.

Step 2 – Dilute the Product

Mix one part Stone King with three parts clean water.

A 4-litre container makes up 16 litres of ready-to-use solution and covers approximately 100m², depending on the porosity of the surface and application rate.

Step 3 – Apply Evenly

Pump the sprayer to build pressure and thoroughly saturate all areas affected by algae.

Step 4 – Leave It to Work

Allow the product to dry naturally. Stone King begins working immediately, with visible results typically appearing within two days and continuing to improve over the following five days.

Step 5 – Repeat if Necessary

For areas with particularly heavy algae growth, simply repeat the treatment until the desired result is achieved. Allow 5 days for the first application to work.

Frequently Asked Questions

Do I need to pressure wash afterwards?

No. Stone King Algae Remover is a spray-and-leave treatment designed to work without pressure washing or scrubbing.

Where can I use it?

Stone King is suitable for use on patios, paths, decking, fences, conservatories, walls and many other outdoor hard surfaces. Always test on a small, inconspicuous area before full application.

How long does it take to work?

Most customers begin to notice results within two days, with algae continuing to break down over approximately five days.

Will it stop algae coming back?

No algae remover can’t permanently prevent regrowth, particularly in damp or shaded locations. However, regular use of Stone King helps keep algae under control and makes ongoing maintenance much easier.

Keep green algae under control the easy way with Stone King Algae Remover and enjoy cleaner, safer outdoor spaces all year round.

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.