Have you Seen this ??

Our local water dept says come wash our building. Its cement block with some type of cement , stucco or somthing covering it ? its solid white , I chipped a piece off to look at the color and it is solid all the way through so its not painted the building is 25 yrs old ? any feed back is great,on how to clean it or what is it ? thanks

Hey Shane, Dennis here in North Georgia right around the corner from you. Been to Westminster several times passing through on the motorcycle. ;o) Sounds like an old stucco. I would test a small section with a detergent/bleach mix and low pressure. If you could break a piece off then the pressure will do the same thing. So just be careful there. Hit the pressure directly at the stucco using no angles just back off from the wall to reduce the force. Increase the percentage of chems vs increasing pressure. Good Luck and stay in touch!
Dennis-North Georgia Spray Masters, Inc.