Vacuuming up old sandy mortar bits after chipping old lime mortar off a stone foundation is less dusty than brushing the wall off. And sometimes the vacuum wand can reach places a brush can’t. We still sweep the floor or ground underneath the wall, so we can’t avoid the dust cloud entirely, but we try to minimize it. You want your stone wall to be as free of dust and debris as possible before applying new lime mortar so that you get good adhesion of the mortar to the stones. Check out our “repoi

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