MGBINSPECT, The cinderblock wall is only 2 blocks high above the foundation. Indeed, the spring run-off from the snows we get in NH are carrying an assortment of minerals and salts. The problem area lies at the interface between the cement foundation and the cinderblocks which places it at about surface level. It is not unusual to have 3-4 foeet of snow sitting all winter waiting for spring to melt. I will check out NCMA. Thank you for the suggestion. Mike