Have a tree which produces berries and they have stained our driveway. I have pressure cleaned with water only , cleaner runs at 1600 Psi, but still leaves marks can you offer anything or recommend please.
Barry Guy.
0409087344
339700cookie-checkStains on concrete driveway
Berry stains are normally pH dependant. Vinegar might work. Other than that, use swimming pool bleach (12%). It will oxidise it to bits