I have only joined this site and I would like some advice regarding pebbledash. My new house has reached this stage and I am considering dash as it would be low maintenance. I also think that dash may be more suitable as the house is close to trees and woodland area. I need a bright colour and have consider pearl grey. My question is regarding the sand used in this dash. Could the builder use silver sand to the grey stone dash to brighten it or is it too expensive. If not silver sand can lime or any other brightening be used?