![Boxed In](https://cole-onsiteinstaller.imgix.net/https%3A%2F%2Fwww.onsiteinstaller.com%2Fuploads%2Fimages%2F919.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=118f61c2e0062a39816acd493cf42ef7)
Mark Yohnk with Stolt Excavating uses a John Deere 35C ZTS mini excavator to move septic sand inside Eljen’s Mound in Box. (Photos courtesy of Mark Prevost)
Owners of a three-bedroom seasonal lakefront cottage in Ladysmith, Wisconsin, wanted to make it their permanent residence and build an addition. A 2,000- to 3,000-gallon concrete holding tank was the typical septic upgrade for Lake Flambeau residents, but the homeowner didn’t...