Hard water deposits can quickly make your bathtub look nasty and unclean.
Removing hard water stains on concrete.
If this doesn t work try rubbing some dishwashing liquid into the spot with a toothbrush then rinsing off.
In the morning scrub the stains away.
Apply a second layer of white vinegar and scrub the stain with a stiff bristled scrubbing brush vigorously for at least two minutes.
Wet the surface lightly and scrub some acid mix into it with a deck brush.
Often you can remove a brand new stain with only household cleaner and water.
Clean the area with water.
Let the vinegar and baking soda solution stand overnight.
You should see the acid mix fizz.
Let it sit on the hard water stain for 15 to 20 minutes then scrub and rinse it off.
It is used on colored concrete and is very effective.
Try pouring hot water from several feet above the stone onto the stain.
When the activity dies down wash the area immediately with water so that the residue doesn t dry beforehand.
Hard water stain removal from the tub.
Another way to remove hard water marks is with trisodium phosphate otherwise known as tsp which is recommended for use on decorative or stamped concrete.
Next work it into the concrete stain using a stiff broom or brush.
If any fertilizers are in the water they can also stain the concrete.
It will probably take more than 1 time to completely remove all the hard water stains on the concrete.
Repeat several times and your stain may just disappear.
Take a coarse brush and clean the stain with the solution applied on it.
Use a nylon brush to scrub it away.
Using the toilet brush swish the solution around the bowl to ensure that it covers the entire bowl including above the water line.
Apply undiluted white vinegar to the entire mineral deposit you are attempting to remove and allow the stain to soak for approximately 20 minutes.
If the stain resembles a chalk like residue then you should remove it with an efflorescence remover.
Put the 90 water in a bucket and add the acid to it.
In most cases a mildly acidic cleaner combined with some scrubbing can remove these stains without etching concrete.
Don t rub the surface it will drive the stain further into the concrete.
Soak up as much as possible with paper towels.
If you don t want to use a cleaning solution like tsp you can try substituting white vinegar or lemon juice.
It s best to wear rubber gloves.