No waste pipe from a refrigerator or icebox
floor drain or any other receptacle where food is stored shall connect
directly with any house drain, soil or waste pipe. Such waste pipes
shall in all cases empty into an open sink that is properly supplied
with water, connected, trapped and vented the same as other fixtures.
They may also discharge into a downspout or rain leader trap located
inside the building or into a cellar floor drain, but their ends must
be left open. Such waste connections shall not be located in inaccessible
or unventilated cellars.
Refrigerator waste pipes shall be not less than
1 1/4 inches for one opening, 1 1/2 inches for three openings
and not less than two inches for four to 12 openings. They shall have
at each opening a trap and cleanout at angles, so arranged as properly
to flush and clean the pipe. Such waste pipes shall be continued not
less than full size through the roof, except where such fixtures are
located in the basement or first floor.
Pipes from a water supply tank or exhaust from
a water lift cleaner or pressing machines or other exhaust pipes shall
not be directly connected with any house drain, soil or waste pipe.
Such pipes shall discharge upon the roof or be trapped into an open
fixture or discharge as for refrigerator wastes.
