10 Best Moss And Algae Killers

Wet & Forget Mould, Lichen & Algae Remover is a convenient solution for outdoor cleaning, particularly effective in removing mould, mildew, and algae. Its primary active ingredient is Benzalkonium Chloride, which helps in breaking down these unwanted growths. The application method is simple – just mix one part of the solution with five parts water, apply it to the dry surface, and let it work without any need for scrubbing. This is beneficial for those looking for a hassle-free cleaning method.

One of its strengths is the large coverage area; a 5-litre bottle can be diluted to make up to 30 litres of cleaning solution, covering between 100 to 300 square meters, which is quite efficient for larger surfaces. The product is versatile and can be used on various outdoor surfaces like roofs, bricks, natural stones, and even artificial grass. However, users should ensure that there are at least 5 hours before any expected rainfall to allow the product to be rainfast and effective.

Safety is another consideration. While it does not contain bleach and is biodegradable, it is advisable to use protective gloves and eye protection during application for personal safety. The product has received positive customer reviews, indicating satisfaction with its performance. However, it is important to note that the product is not specifically marked as safe for plants and pets, so caution should be exercised around these. Wet & Forget offers an easy and effective solution for outdoor cleaning with a significant coverage area and versatile application, though users should handle it with care for safety.

The Jarder Spray & Leave 4 x 5 Litre Concentrate Cleaner is a convenient solution for tackling green mold and algae on various hard surfaces such as patios, decks, and fences. It offers the advantage of no-effort cleaning—simply mix with water, spray, and then walk away. This makes it quite user-friendly for those looking to avoid scrubbing or pressure washing. One of the standout features is its super concentrate formula, which means one bottle can yield up to 30 liters of cleaning solution, effectively covering a large area of 240 square meters. This makes it ideal for larger outdoor cleaning projects.

An added benefit is its long-lasting effect, with results visible in just 2-3 days and a barrier that helps prevent algae regrowth for up to six months. In terms of safety, the product is biodegradable, pH8, non-caustic, acid-free, and bleach-free. Once dried, it is safe for children and pets, which is reassuring for households with families and pets.

Potential buyers should be aware that the product's effectiveness and rainfastness aren't explicitly detailed, so it might be wise to avoid using it just before rainfall. Those with smaller areas to treat might find it more suitable to look for products with smaller volumes to avoid wastage. It's a good choice for someone looking for an easy-to-use, effective outdoor cleaner that provides long-lasting results.

The Pro-Kleen MY16 Patio Cleaner is a versatile solution for tackling green mould and algae on various hard surfaces like patios, decking, and fences. Its main strength lies in its high-strength super concentrate formula, allowing a single 5L bottle to create 25L of solution, translating to a generous coverage of 175m². This makes it a cost-effective choice, especially with its claim of having 50% more active ingredients than competitors. The active ingredient, Dimethylbenzyl Ammonium Chloride, is effective for long-term prevention, reportedly keeping regrowth at bay for up to six months.

Application couldn't be easier—simply mix the concentrate, spray it on the affected area, and let it work its magic without the need for scrubbing or pressure washing. This 'spray and walk away' approach makes it particularly appealing for those who want to save on time and effort. Plus, it's rainfast, meaning it remains effective even after light rainfall once it's dry.

One of the most attractive features is its safety profile. The formula is non-caustic, biodegradable, and free from acids or bleach, making it safe for pets and families once it dries completely. This is an important consideration for households with children or pets who frequently use the treated outdoor spaces.

However, the product does have some drawbacks. While it claims quick results, it may take a few days for the full effects to be visible, which might not be ideal for users looking for immediate results. Additionally, it's crucial to ensure thorough mixing and application to achieve the best outcome, as uneven distribution can lead to patchy results. Despite these minor issues, customer reviews are generally positive, reflecting a strong satisfaction with its performance.