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A quiet water closet rim and a method for venting air from a rim cavity of a water closet. The rim has a horizontally oriented annular cavity and is selectively supplied with pressurized water by a flush mechanism. A series of perforations in the rim permits the pressurized water within the rim cavi

A quiet water closet rim and a method for venting air from a rim cavity of a water closet. The rim has a horizontally oriented annular cavity and is selectively supplied with pressurized water by a flush mechanism. A series of perforations in the rim permits the pressurized water within the rim cavity to exit the rim in the form of a spray. The rim is also provided with a vent passageway having an inlet open into an upper portion of the cavity and an outlet open into the atmosphere. As pressurized water fills the cavity, a portion of the air within the upper portion of the cavity is vented through the vent passageway.

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A rim for a water closet having a bowl and flush means selectively operable to supply pressurized water to a rim, said rim comprising an annular main body adapted for interconnection in a horizontal orientation with said bowl, an annular cavity extending through said main body and having a downstrea

A rim for a water closet having a bowl and flush means selectively operable to supply pressurized water to a rim, said rim comprising an annular main body adapted for interconnection in a horizontal orientation with said bowl, an annular cavity extending through said main body and having a downstream portion and an upstream portion, said flush means supplying pressurized water to said upstream portion of said annular cavity and directing the water towards said downstream portion of said annular cavity, a series of perforations in said rim in communication with said annular cavity whereby pressurized water supplied by said flush means to said annular cavity may exit said annular cavity and enter said bowl, and a venting passageway located in said downstream portion of said annular cavity and provided with an inlet and an outlet, said inlet being open to an upper portion of said annular cavity and said outlet being open to the ambient atmosphere at a location below the inlet, said vent passageway having a cross-sectional area substantially larger than the area of each said perforations; whereby, as pressurized water is selectively supplied to said annular cavity and forces air through said cavity from said upstream portion to said downstream portion, a portion of said air is vented from said cavity through said vent passageway.