On my ride on sprayer setups I built (2) I've had them for 1.5 seasons now. I love them, the functionality of them and dependability except for 1 thing. The wiring!. More specifically the waterproofing of the wiring and corrosion taking effect of the switches, connectors etc.. for the guys with ride ins, how is the wiring waterproofed per say? I've tried waterproof splices , butt connectors etc, wrapped them.and double wrapped them with heat shrink and I still get corrosion. Within months!, so I've been having to change my switches about 3x per season and wiring 2x... I've got to fix this as this is the only spot my system lacks.. I need better switches etc.. help, I'm tied of fighting this.