beleive it or not I have had some luck with Rain ex or just a good application of a car wax.
How many applications of sealer are you using?
Are you using a water based sealer or a solvent based sealer?
If you have applied several coats of sealer and used a solvent based sealer then you have done just about all you can do.
I’m sure the minerals in the water is going to effect the water spotting. The water in their California home is not the same as their home in Maui
StoneCare Central is coming out with a new and improved Soap and Film Remover you customer can use and this should remove the water spots with no problem. Look for this new product in the next several weeks
John E. Freitag
The Stone and Tile School
I have a customer in Maui that is complaining about water stains on the floor of her highly polished marble shower. They have a water softener installed, and the company that installed it, tested the water and says that the water is fine. We polished out the mineral buildup and sealed the stone and grout with Limestone & Mable Protector and after about a weeks use, they have heavy duty water deposits on the floor again. They seem to think that we are not using a good impregnator because the spots should be easier to clean off. I explained to them that impregnators keep the stains on the surface but will not do anything about the minerals in the water that are being left behind.
They claim that they have the same marble shower in their home in California, without a water softener and do not have this problem.
Is there a way to prevent the minerals from bonding so well to the polished marble floor? Do you know of a product that will remove these deposits with out harming the polished finish?