To remove pour one eighth of a cup of liquid dishwashing detergent into a spray bottle then top off the bottle with warm water and shake well.
How to clean water stains off concrete walls.
Apply a second layer of white vinegar and scrub the stain with a stiff bristled scrubbing brush vigorously for at least two minutes.
Scrub a mixture of dish soap and water on to the stain and rinse it off using high pressure from a garden hose with a nozzle.
If the stains are left on decorative concrete then you should use trisodium phosphate or tsp as it is most commonly known as.
Allow the solution to fizz and then rinse it off with plain water.
Wet the concrete stain with a bit of plain water and then rub the acid mixture into it using a coarsely bristled scrub brush.
Pour plain water into the bucket prior to adding the acid.
Now rub the mixture on the stain with a mop or a rag.
It this doesn t work repeat using oxiclean instead of dish soap.
Apply undiluted white vinegar to the entire mineral deposit you are attempting to remove and allow the stain to soak for approximately 20 minutes.
Spray the wall as necessary.
Create a cleaning solution of 10 percent hydrochloric acid and 90 percent water in a bucket.
Wash it off with clean water and repeat as necessary.
A thorough cleaning with a concrete safe cleanser lightens stains and usually removes them completely.
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Simple take 5 gallons of warm water and combine 1 pound of tsp with it.
1 spray the entire wall with water to rinse off dust and dirt.
Spray the concrete stains with the soap solution.