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For RVs with space to mount the system directly on the RV dump valve. Installation is easy - just twist it onto the end of the RV sewer pipe, hook up the wiring and you are ready to empty the tanks. The gray water bypass system allows the gray water tank to empty around the pump at parks with sewers. The system includes the 21' long x 1" dia retractable hose which stores in only 7 feet of length. The universal nozzle includes a threaded sewer adapter for both 4" and 3" threads. Lifts 20' above the pump, up to 350' away. The overall length of the pump and motor when installed is only 8.5" , which takes very little room to install. Requires a 12 volt circuit with at least 20 amps available. Do not hook to a light circuit in the bay or to any other appliance that might be used at the same time, such as the water pump. |