For stubborn hard water stains you can use vinegar for cleaning the marble surface.
Can you use viniger and water on cultured marble.
If you re cleaning cultured marble because of hard water stains use the same water and vinegar mixture above but let it dry for 30 minutes.
Remember not to use abrasives when scrubbing.
Using incorrect products can cause staining and stripping of the shiny gel coating on your marble.
Now for the mildew i would probably use a 50 50 bleach and water mix.
Removing hard water stains.
If this doesn t remove the stain repeat the process.
If you notice mild buildup or stains you can do a heavier clean with white vinegar.
How to clean cultured marble.
Then using a clean damp cloth wipe down the hard water stained area.
If possible excess water from the shower base and surrounding areas should be squeezed out after each shower to prevent water stains.
White vinegar is also gentle enough to use on your cultured marble so do a happy dance.
Tips to keep your bathroom squeaky clean.
If there are any stains left behind use a cleaner made for marble to remove them.
There are multiple products and ways in which you can clean cultured marble but regular cleaning in a must.
However it is important to use proper cleaning products to learn how to clean your cultured marble.