and a third plumber 39 s plug 90 is used with the 3 u2033 drain line 41 in the illustrated example of fig3 the plumber 39 s plug 86 is attached to the bottom end of the threaded stem 78 the other two plumber 39 s plug 88 and 90 are each threaded on one of the two threaded projections 82 and 84 respectively of the carry bar 80 the plumber 39 s plugs 86 88 and 90 can be moved between the bottom end of the threaded stem 78 and the projections 82 and 84 of the carry bar 80 based on the diameter of the drain line 41 the plumber 39 s plug 86 located at the bottom end of the threaded stem 78 is located between two flat discs 94 and 96 in one example the flat disc 94 and 96 are made of steel the top flat disc 94 is located above the plumber 39 s plug 86 under a spring pin 98 that is located under the pipe 70 and the bottom flat disc 96 is located below the plumber 39 s plug 86 the bottom flat disc 96 is fixed to the bottom end of the threaded stem 78 and the top flat disc 94 is not fixed to the threaded stem 78 when the wing nut handle 87 is rotated the threaded stem 78 is rotated by turning the wing nut handle 87.