Inventor, Gary Murray, holding patented bolt-up sleeve used to help align and strengthen sump floor joint between modular units.

One inch threaded rod runs entire width of several tubes under building. Nuts crank and hold modular units together.

Bolt-up sleeve partially inserted into the tube under floor of rear modular unit. Coupler connects threaded rods from both units.

Exterior wall mid joint caulked down to base. Bolt-up sleeve (arrow) hidden between each module.