A mounting assembly for a discharge conduit of a medical treatment device, such
as a dialysis machine. The mounting assembly has a connector member detachably
engageable with a discharge nozzle of a discharge conduit and a suction cup that
can be mounted on a rim of a waste receptor, such as a sink or a toilet bow. The
mounting assembly supports the discharge nozzle directly above the opening of the
waste receptor, thereby facilitating discharge of the liquid waste directly into
a municipal sewage line.