The Quiet Vandal-Pac enclosure is the right choice. The Quiet Vandal-Pac houses the Godwin Dri-Prime pump in a specially designed enclosure that mounts directly to the trailer and allows pumping to continue while at the same time providing equipment protection and keeping engine and other noise to a minimum. The Quiet Vandal-Pac option is available for any Godwin pump model that can be mounted on a 30, 60 or 100 gallon (114, 227 or 379 liter) trailer. Sound levels are approximately 72 dBA at 30 feet (9M).