Are you frustrated with the build-up of hardwater deposits and mineral stains on your stucco? Stucco is porous which makes it easier for stains to set in. It can wear down and chunk off so stains and discoloration appear darker and deeper at various points of the surface. Thunder Wash uses low pressure to remove rust stains and dirt on stucco and dryvit surfaces. So, is it time to clean your Stucco?