removing mold from patio stones?
- robertoLv 62 months ago
spray with lysol,kills mold & funguses
- ron hLv 72 months ago
from a hardware store Lowes or HD, get some TSP cleaner (usually in the paint dept) and mix it with some bleach in hot (or warm) water. use a broom or brush to scrub what you can. Rinse really well b/c bleach with make the stones really slock.
- Anonymous2 months ago
Try the water hose with a garden nozzle first and blast the stones clean. Sounds like moss. It washes off.
- Christin KLv 72 months ago
Do you mean mold or ALGAE? Which is not mold. Algae is green--mold would be black. It can be removed with a product called Wet and Forget--which is just what it says--you spray it on and leave it. It kills the greenish algae that gets into stones, wood fences or decking and railings. If your stones are covered with thick green stuff--that's MOSS and you only need to scrape that off with a tool. They do make moss killers, but you don't need them. You can simply remove it and wash the stones with water after.
Stones usually don't mold. That's why I was asking. Bleach wouldn't be safe for the environment and it's not recommended for stone.
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- KateLv 72 months ago
Bleach and hot water.
- M JohnsonLv 62 months ago
Turn them over, and rinse with a hose.
- Karen LLv 72 months ago
Scrub brush, vinegar, and a garden hose.
- oldprofLv 72 months ago
High pressure water cleaning. You can get high pressure systems at Home Depot and similar large hardware stores. Simply spray the mold with the HP water and the mold will peel right off the stones and/or bricks.
One word of caution (based on experience with my HP system), try spraying a small part of the patio especially in the mortar area between the bricks or stone. Sometimes the high pressure water will actually cause the mortar to break up.
- David B.Lv 72 months ago
The fastest way would be to rent a pressure washer. Make sure it has a chemical injector. That way you can apply some bleach from a bucket and then use the pressure nozzle to easily remove all of it. In the video, the guy is using the chemical injector to apply the chemicals. If you have sand between the stones you may have to add more when you are done.
- Anonymous2 months ago
Scrub with a mixture of baking powder and white vinegar.