Bullet check valves are optional with the Straight Shot. They allow pressure and stop the flow of liquid directly above the Straight Shot when the fertilizer pump is shut off.
If using bullet check valves, you may want to install the Straight Shot kit shown in this picture.
Important points to remember when using bullet check valves:
- All fertilizer must be filtered before it goes into any check valve. Filtering will prevent the check valve from sticking open or closed.
- All systems must be thoroughly washed and/or blown out at the end of the planting season to prevent crystals in the lines. This will help prevent the check valves from becoming plugged for next planting season.