Can I stop the water from seeping through concrete block?
I have a concrete block column that supports an overhang. There is a concrete cap over the top of it where it is otherwise exposed. I have sealed the gaps between the two. There is water seeping out of the column several feet up from ground level. This column is free-standing, so the water can only be coming from the top and sides, unless it is somehow squirting up from the ground (doubtful). The column is in front of a south facing block wall. Does anyone have any ideas for curing this? Rather than fluffy effluorescence, the residue is hard calcium carbonate like a stalagmite. I chipped about 1/8″ of the stuff off of it before painting. The fresh paint did not stand a chance against it.
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