I just leave them on the boat and go to a quarter carwash. You obviously don't need to get the wand right up on it. The wind from the spray and the water will take care of dusty covers easily. Spot treat with 303 fabric cleaner and. Soft brush. Let dry outside, then treat with 303 fabric sealant to maintain water repelancy.
2007 Supra Launch 22SSV
(2) Wetsounds Rev 10's, (6) XS-650, (1) Syn 6, (1) Syn 4, (1) Kicker 10" Sub, WS-420SQ Full RGB LED on Wetsounds
(2) SeaBlaze 3 Blue Transom Lights
Supra Surf swim platform
NauticLogic GPS Speedwheel/Perfect Pass Interface
Wakemakers Ballast Upgrade, 3 Pump Fill, 3 Pump Drain