![Adding Four Bedrooms, Doubling the Square Footage](https://cole-onsiteinstaller.imgix.net/https%3A%2F%2Fwww.onsiteinstaller.com%2Fuploads%2Fimages%2Fimg_0513.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=df1c0a294ed03135b9b359fe1927f998)
PEI technical representative Mark Vander-Heyden and Gene Graves from Sustainable Solutions watch Jim Malm of Malm Plumbing scarify the drainfield area with a Kubota L35 backhoe.
A mandatory onsite system upgrade came with a homeowner’s plans to add four bedrooms to his three-bedroom home in Granite Bay, California, and to expand the footprint from 3,640 to 8,500 square feet. The original 1979 trench-and-stone system also was in failure.
The homeowner...