Clean the stone surfaces with a neutral cleaner and not a strong detergent. Clean using a mild liquid dish washing detergent, warm water and a clean rag will suffice. Cleaning with excessive high concentrations or with harsh cleaners may lead to streaking. We suggest that you follow the manufacturer’s recommendation.
In wet areas such as the bathrooms, you can minimise the soap scum but using a squeegee. To remove the scum, you can use non-acidic soap scum remover or a solution comprising of ammonia and water. However do note that excessive or prolonged usage of this mixture may result in the dulling of the stone surface of some stone types.
For external areas such as outdoor pool, patio or jacuzzi areas, you will just need to flush with a mild bleach solution and water to do the trick and for the removal of algae or moss.