Sand Trap High Flow UpgradeSand Trap High Flow Upgrade (pictured with Sand Trap sold separately) Increase the capacity of your Sand Trap to 10 gpm+ for faster work speed! Allows for quicker and more efficient separation of air from water flow, and requires less horse power (saving lots on fuel!). Also reduces strain on the auto pump out, making it more reliable. The High Flow upgrade adds another hose connection at the top of the tank, allowing air to stay separated from the