Three Letters Re: Keeping Secrets in Suburbia–Constructing Our Hidden Basement Room
James Wesley: In the article “Keeping Secrets in Surburbia–Constructing Our Hidden Basement Room, the author describes the difficulty they had removing hard-packed dirt with the consistency of dried concrete, and using an air chisel to break it up for removal and excavation. I’ve faced a similar problem with an underground excavation of a basement and egress tunnel in the granite and sandstone beneath the foundation of my own retreat home in the Western US. My answer came in the form of a good deal on a slightly used Bosch #11304 “Brute” breaker hammer electric jackhammer, suitable for use either with …