Dianne Rose said: “Cheap washing powder.
“Sprinkle, leave to soak for 48 hours then rinse.
“Worked a treat on my tennis court.”
Karine Griffin replied: “Cheap washing powder, big helping of bleach.
“Leave to soak then rinse off.”
Lee Wellings commented: “Jet wash does need tap open fully on the wall!
Published at Fri, 13 May 2022 01:00:00 +0000