Greg from Hamilton, Oh writes
The Chapin Pro Series 4 Gallon Backpack can be strapped on by following these steps: The top of the shoulder straps are attached to the tank. Attach the lower end of the straps by clipping the strap hooks to the metal frame between where the frame exits the tank and curves around. Please see detailed instructions here, in the manual.
Answer last updated on: 12/30/2019
