How do I remove limestone stain from my outdoor pavets
Related Discussions
How to clean a mirror without streaks?
Every time I clean my mirrors, they end up having tons of streaks and almost look worse than before I started. What could I use to clean them that won't leave streaks... See more
How to clean burns on stainless steel pans?
Help! I burned my pan. How do I clean stainless steel cookware that's been burned?
How to clean shower doors
How to clean glass shower doors
How to clean my kitchen cabinets from grease?
My kitchen cabinets are embarrassingly greasy. Please share your degreasing tips with me so I don't have to cringe every time I glance at my cabinets.
How to clean hardwood floors in the kitchen?
What is the best way to clean hardwood floors in the kitchen?
How do I get the black marks off my composite deck?
As we all know New England is getting hammered with snow this year! And I had so much snow on the deck that I had to use the snowblower to get it off. I'm anticipatin... See more
How do I remove stains (from planter) from my concrete stoop?
I have a beautiful blue ceramic planter on my stoop that has left a stain on my concrete stoop. I have tried scrubbing it but it doesn't help. What works?
Thats probably efflorescence, mineral salts from the mortar and/or the brick when exposed to water rise to the surface. Its hard to get rid of once it appears, but you can try scrubbing with muriatic acid or I would get the 20% vinegar from a gardening store, scrub with a long handled brush. Wear protective rubber boots, gloves, and goggles. https://www.youtube.com/watch?v=AEGLg8kT-Oo
Then seal it.
Muriatic acid
From your pictures it looks like it is mineral deposits like calcium from water standing in the whiter areas. The walkway is not draining properly. Try a good shower cleaner first, then muriatic acid. Unless you are able to stop the standing water in those areas, it will build up again.
If it is efflorescence, it will return as it is caused by the lime in the mortar leaching into the bricks. I have that on my fireplace!
What about CLR?
You might want to try Borax (20 Mule Team) and cider. - I tried cleaners on my basement with no result. This is the plan for the next attempt
try borax mix using package directions or there is a product on the market called SPRAY AND FORGET also apply by directions it has a fast method or just spray and forget.
We have very hard water with calcium & limestone. Using citric acid to clean the white deposits is the best cleaner I have found. It is not toxic & will clean without much effort. I first found it in the home canning section because it's used to preserve color in fresh fruit. Hope it works for you.
Add backing soda to hard water and it will turn soft and more effective in cleaning.
phosphoric acid (environmentally friendly) cleaners are available at paint stores (S-W).
It's a calcium lime and rust remover.