DIY expert Fix it with Fowler has shared an eco-friendly method to clean patios using just two common household items: sodium carbonate and washing up liquid. This technique avoids harsh chemicals that could harm pets and the environment. To begin, clear the patio of weeds and debris using a trowel and stiff brush. Wet the area with a garden hose, then sprinkle sodium carbonate evenly across the surface, followed by a small amount of washing up liquid. Scrub the patio thoroughly, focusing on heavily soiled areas. After scrubbing, leave the solution to work for 48 hours. Fowler noted that rainfall can help wash away residue, enhancing the cleaning effect. This method is not only cost-effective, with sodium carbonate available for as little as 62p at Aldi, but also minimizes environmental impact.