I have a chevy 350 can I hook a hose up to the sand trap and run fresh water through it and RELIABLY rinse the system? I would like to leave my boat in Seward but i would like to flush the system after each use without hauling it to a lake to run it. And how long should I run the water after it starts out the exhaust? I know not to run the motor as it will damage the jet which is a 733 Hamilton. Any other options out there? I might also mention I head to the car wash and high pressure the entire boat down including the inside of the jet.