Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie

Removing black spots on Indian sandstone

Options
  • 16-08-2015 11:04am
    #1
    BoardsMember
    Registered Users Posts: 4,440 ✭✭✭


    Title says it all. I have read that household bleach can be used, but it didn't seem to budge mine. I haven't cleaned my patio much since it went down 7 years ago. Power hosed it yesterday to find obstinate black spots remain. If I hold the washer on the spots for long enough they usually budge, but it would take a few days to do the patio at that pace. Anyone got an ideas on how to remove these? I believe they are lichen.


Comments

  • Options
    #2
    Norfolk Enchants_
    Registered Users Posts: 661 ✭✭✭Norfolk Enchants_


    BoardsMember wrote: »
    Title says it all. I have read that household bleach can be used, but it didn't seem to budge mine. I haven't cleaned my patio much since it went down 7 years ago. Power hosed it yesterday to find obstinate black spots remain. If I hold the washer on the spots for long enough they usually budge, but it would take a few days to do the patio at that pace. Anyone got an ideas on how to remove these? I believe they are lichen.
    Try jeyes fluid.


Advertisement