Jabsco Vented Loop Solenoid Valve f/37010 Series ToiletVented Loop Solenoid Valve for 37010 Series Toilet When installing a vented loop in the inlet hose, it is recommended that a Vented Loop Solenoid Valve (37068 2000) is connected to the vent air inlet to ensure maximum electric toilet performance and prime ability. Connect the brass port of the valve (remove plastic filter, if installed) with the air inlet of the vented loop. Wire the solenoid valve in parallel with the toilet motor by connecting one