Patent ID: 9359750
Filing Date: 2016-06-07
CPC Classification: E03C,F15D

Claim Text:
1. An apparatus for draining liquid, comprising: a liquid inlet; a valve; a p-trap comprising an additive introduction tee and piping; an additive reservoir; and a p-trap liquid outlet; wherein: said liquid inlet is fluidly connected to said valve, and is adapted and configured to allow for flow of liquid into said apparatus from an external fluid source; said valve is adapted and configured to allow and control flow of said liquid between said inlet and said p-trap additive introduction tee; said p-trap additive introduction tee is oriented so that: said liquid flowing through said valve is allowed to flow substantially vertically downward into said p-trap additive introduction tee; said liquid disposed in said p-trap additive introduction tee is allowed to flow substantially vertically downward out of said p-trap additive introduction tee into said piping; and said liquid disposed in said p-trap additive introduction tee is allowed to flow substantially horizontally into said additive reservoir; wherein said apparatus is adapted and configured to allow at least a portion of said liquid disposed in said p-trap to concurrently accumulate in said additive reservoir; said additive reservoir is adapted and configured to allow disposition therein of one or more additives; and from a location where said liquid flows from said p-trap additive introduction tee into said piping, said piping extends substantially horizontally to a location where said piping is connected to said p-trap liquid outlet, which is adapted and configured such that a liquid level in said p-trap is disposed above a bottom interior surface of said additive reservoir.