internal receptacle 23 within the interior of biomaterial handling device 10 an output port 25 having an output port opening 26 is connected to waste chamber 24 such that a unidirectional fluid flow through receptacle 23 into waste chamber 24 is configured to exit through output port 25 and out of output port opening 26 while the present embodiment illustrates one output port 25 it is conceivable to provide more than one output port 25 connected to waste chamber 24 to allow fluid flow through receptacle 23 to an exit thereof in disclosed embodiments output port 25 may extend from waste chamber 24 and terminate at output port opening 26 in the disclosed embodiment the width of insert 18 is in close fit arrangement with the diameter of internal receptacle 23 in addition insert 18 may include a lip 28 around the circumference for sealing insert 18 within internal receptacle 23 as described below in the disclosed embodiment the diameter of filter 20 is also in close fit arrangement with the diameter of internal receptacle 23 the diameter of waste chamber 24 is smaller than the diameter of internal receptacle 23 in an assembled arrangement the increased diameter of the internal receptacle 23 provides a flanged area 30 upon which filter 20 and insert 18 are seated on top thereof insert 18 comprises a top opening a bottom opening and an internal wash chamber 27 disposed within an interior of insert 18 access to internal wash chamber 27 occurs through the top opening which is configured as inlet port opening.