It is not pure calcium carbonate as ma would readily consume it.
Calcium buildup on tile grout.
You can then apply a sealer to safeguard against future calcium buildup.
Let the tile dry completely.
I have the same issue poor decision not forcing the pool builder to use silicone grout.
These deposits will cause shower tiles to appear dull and dingy.
The only way to clean off the calcium deposits is to hire a company that does glass bead blasting.
Try mixing half white vinegar with half dishwashing soap in a spray bottle.
In severe cases the dirt will also discolor the tile.
Leave on tile 2 to 4 hours then scrub and rinse with a brush.
Ok so not so much on the tile but on the grout.
Normal cleaners do little to dissolve the calcium deposits and all purpose cleaners do not even scratch the surface of the hard water stains.
That is evaporite scale.
A common problem in many homes hard water contains a high amount of minerals such as calcium that will quickly begin to build up on shower tiles.
Apply a coat of it on the affected floor with the help of a toothbrush and rub it in gently.
Step 4 scrub and scour because calcium buildup is adamant and hard it will not be possible to simply wipe it clean with a mop.
Because calcium deposits add up layer by layer you ll need to remove each layer until you remove all the buildup.
The soap is used to thicken the vinegar creating a heavy coat but it takes time for the vinegar to work thru the layers of built up.
Shake very well and spray thoroughly to make a thick layer over tile.
Don t be fooled into thinking you need to buy expensive commercial products to clean your tiles.
Very often a tile floor can be cleaned with hot water or extremely small amounts of cleaner.
Preferably the dirty water should be vacuumed off the floor.
A couple of years ago i was quoted 3 00 a linear foot for cleaning.
The glass beads are under air pressure and they literally blast off the calcium and leave the tile untouched.
Because the grout joint is commonly lower and more porous than the tile the dirt tends to be observed in the grout joint.
Scrub the tile with a scrubbing brush or pad to remove the next layer of calcium buildup.
Calcium bicarbonate commonly known as baking soda is also a chemical composition that has deep cleaning properties.
Apply the product and repeat the scrubbing process until the tile is clean of calcium deposits.
Showers can quickly turn grimy with mold mildew soap scum and hard water deposits.