Lost a full day's pay on a 'quick' repointing job with the wrong mortar mix
Took a small job repointing a garden wall in Springfield last month, and the homeowner insisted on using a bag of pre-mix he already had. It was a type N mix, which is fine for general stuff, but this wall had some old, soft brick. The new mortar was way too hard and started to crack within a week, pulling moisture in. I had to go back, chip it all out (which took a whole day I couldn't bill for), and do it again with a softer lime-based mix. Anyone have a go-to mix ratio for old, crumbly brickwork to avoid this mess?