Cool How To Clean Green Off Wooden Garden Furniture Ideas. Leave it for about ten minutes. If the algae is stubborn, you may want to add ordinary vinegar to the algae treatment (¼.

You need to start by soaking a clean, soft cloth or your soft bristle brush in a solution made of 3 parts warm water and 1 part washing up liquid. Use only water solution 1.4 04. Leave it for about ten minutes.