Yes, but they will require a decent application of elbow grease. You can spray the entire surface with water using a garden hose, then dissolve 75ml of washing soda in a gallon of hot water and scrub with a brush soaked in the solution, re-dipping as required. Alternatively, you can sprinkle powdered dishwashing detergent over the entire surface and scrub. The key thing is to follow the instructions, as different cleaners will work in different ways. Some work better if applied to a wet or dry surface, and may need rinsing off a few hours after application. Others use a ‘wet and forget’ approach, where you just apply the cleaner then leave it on to do its work. Are there different types of patio cleaner for different problems? Sweep all leaves, dirt and other debris off the surface before application to allow for maximum penetration of the active ingredients. You do need a little patience with this one. While the effect varies, you might find that, for the first day or two, nothing much seems to have changed. However, as time goes on, all that slippery algae and stubborn mould will disappear, and the longer you leave it, the better it gets. And while it seems expensive for what it is, this one bottle of concentrate makes 30 litres of spray, so you won’t need any more for a while unless you’ve got vast, palatial gardens. It’s the most effective of the spray-and-go cleaners.

Whichever you choose, it’s important to follow the instructions and use appropriate protective clothing. And, depending on the solution, you might have to keep pets indoors for a period of time.

Tips & Advice

Not usually. You will often have to wait a few hours before seeing any difference, and in many cases the effects will seem small at first, but the area will look much cleaner after a few days. Patience is key. Is there a way to clean my patio without buying patio cleaning substances? All is not lost. And don’t think you will be spending a day scrubbing, down on your hands and knees, as there’s a wide range of patio cleaners out there to make the job easy. These detergents and specialist fluids are designed to cut through the grime to make your patio look as good as new. This study found that Wet and Forget, as well as other outdoor cleaners with the same active ingredient, provided no additional benefits, even though other outdoor cleaners such as Bio-Shield were a fraction of the cost of the other cleaners. For the ultimate finish, complete the job with Nilfisk’s Stone Sealer to prevent further re-occurrence. We tried the products with a Nilfisk 140 Dynamic Pressure Washer/Patio Cleaner, a seriously good precision-control patio cleaner with a long hose and all the accessories you need – plus, it’s quiet.

This will save you between 2-71% when compared to other outdoor cleaning solutions with the same active ingredients. Note:It is normal for some treated surfaces to turn an orange/browncolourafter application. This discolouration indicates a goodresult,however it is not permanent and will soon disappear. Have you ever struggled to clean moss, lichen or algae from your boat'ssurfaces? Wet andForget, it is that simple!A leading New Zealand consumer organisation tested and reviewed Wet and Forget against other outdoor cleaners. Do you want to know what their overall conclusion was? No noticeable difference in cleaning performance between the cleaners tested so, consumers can safely choose based on cost per dilute litre"

Bio-Shield's 5L solution has a greater concentration of active component and the lowest diluted litre cost in the comparison table below. Wood and plastic Play Houses and Playsets, Swing Sets, Slides, Monkey Bars, Climbing Equipment, Seesaws, Baby Swings The well-known consumer organisation conducted blind testing and evaluation of outdoor cleaners that had the same active ingredient.Lichen requires two applications within 15-20 minutes of each other and will take 8-12 months to decompose.