removing calcium from brick and concrete?

#1
I took on a job for Sears to clean a 100'x12' decorative block wall with a concrete base. Management called it salt build up, I think it is calcium build up. I have tried to clean it with CLR, toilet bowel cleaner, muriatic acid, white vinegar with no results. two guys and 8 hours later the wall is as bad as when we started. Some places are as thick as 1/2 inch. Can anyone HELP me? If I don't have a solution before I get on it again I will loose on this job!!!

Thanks so much,

Doug Waller
Action power wash & painting
Ravenna, ohio
 

Doug Rucker

PWN ADMIN TEAM -
Staff member
#2
I took on a job for Sears to clean a 100'x12' decorative block wall with a concrete base. Management called it salt build up, I think it is calcium build up. I have tried to clean it with CLR, toilet bowel cleaner, muriatic acid, white vinegar with no results. two guys and 8 hours later the wall is as bad as when we started. Some places are as thick as 1/2 inch. Can anyone HELP me? If I don't have a solution before I get on it again I will loose on this job!!!

Thanks so much,

Doug Waller
Action power wash & painting
Ravenna, ohio
Call mike at eaco chem and be prepared to email pics.
 

Ron Musgraves

Administrator
Staff member
#4
I took on a job for Sears to clean a 100'x12' decorative block wall with a concrete base. Management called it salt build up, I think it is calcium build up. I have tried to clean it with CLR, toilet bowel cleaner, muriatic acid, white vinegar with no results. two guys and 8 hours later the wall is as bad as when we started. Some places are as thick as 1/2 inch. Can anyone HELP me? If I don't have a solution before I get on it again I will loose on this job!!!

Thanks so much,

Doug Waller
Action power wash & painting
Ravenna, ohio
What did you use to apply the chems ?
 

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