Tom Jenson and his sister Theresa Jaeger own Jenson’s Department Store, located in a downtown Anoka building that was retrofitted with a sprinkler system. family -- at least through Christmas,” said Jenson, about the contractors doing the job. Jenson said fitting the building with a sprinkler system required boring holes in almost three-feet thick masonry walls-- twice the thickness of the brick wall shown -- to run pipe, among the obstacles contractors faced in doing the job. Jenson’s is a family business, around for 70 years.

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