Diverts waste from a toilet to either an onboard holding tank of directly overboard where legal to do so. It can be used to direct waste from a holding tank to either an onboard discharge pump or a deck waste fitting for dockside pumpout. Its self cleaning design provides trouble free operation. The large easy to turn handle has an intregral locking ring that allows it to be locked or sealed in either position. The 1-1/2 curved discharge ports can be rotated through 360ø so the discharge hoses can be routed away in parallel, at 90ø to each other, in opposite directions or either up or down. It is supplied with both a 1-1/2 and 1 straight inlet port for easy attachment to toilets with 1 discharge hoses.