I was drilling holes in a concrete foundation wall and needed to clean out excess cement dust before inserting concrete anchor bolts. I grabbed a can of duster air from my computer desk and it worked great. Inserted the tube and a couple light shots of air and the holes were completely clean. I keep a can on the workbench for little jobs.
Listeners write in about HVAC company consolidation and stains from supply lines and ask questions about Larsen trusses and insulating stucco houses.
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