Choose a dry but overcast day so the liquid won’t evaporate in the sun or get washed away in the rain. I never use ready-to-use chemicals as there’s more plastic wastage, they cost more and don’t treat as big a surface. Another option is to use a stiff broom and washing up liquid as this acts as a degreaser, removing pollution from the surface.

Patio Magic has been sold online since 2010; the first review I could find was on the 28th of March 2010. All you have to do is dilute (in a watering can or low-pressure garden sprayer), apply thoroughly on the affected surface and walk away with no need for scrubbing, pressure washing or any hard work!

Daniel has over 18 years of experience in construction, home improvement and landscaping and is the lead consultant at DIY Gardening. I’ll also provide step-by-step instructions so you can get the best from Patio Magic, and I’ll suggest alternatives that work quicker.

There were several complaints that pet cats and dogs had become ill after licking the product from the patio (despite the warning label stating that pets should be kept off the patio until the product had dried). products is to kill green mould and algae and lichens you will normally see the results of this within 2-4 days. This is a more labour-intensive approach, and I’ve found that some lichens are so difficult to remove that they may remain. This is a great cleaner that will effortlessly kill and control green mould and other algae on all of your outdoor surfaces so that you'll be ready to receive visitors! Sodium Hypochlorite is a powerful bleach with a high alkaline content, so high that it’s corrosive to lichen, mould, moss and algae.I’ve used it on patios, concrete, tarmac and timber decking/fences over the years and I’ve always had good results. Patio Magic can be used on all outdoor hard surfaces including paved areas, patios, paths, driveways, walls, decking, fencing, greenhouse or conservatory glass, perspex and garden furniture. I spent 17 years working with the chemical that’s found in Patio Magic, so I know exactly how it works, what it does and what it doesn’t do. The technical storage or access is strictly necessary for the legitimate purpose of enabling the use of a specific service explicitly requested by the subscriber or user, or for the sole purpose of carrying out the transmission of a communication over an electronic communications network.