Abstract: An air conditioner coil drain line unclogging apparatus for clearing a clogged coil drain line includes an inlet connection configured to attach to an air conditioner coil drain line. A ball valve is coupled to the inlet connection and has a handle coupled to a ball to block and alternatively unblock flow through the inlet connection. A first extension tube is coupled to the inlet connection. A T-fitting has a second inlet end coupled to the first extension tube, a second outlet end, and a perpendicular third inlet end extending between the second inlet end and the second outlet end. The second outlet end is configured to attach to a drain line. A second extension tube is coupled within the third inlet end of the T-fitting. A hose connection is coupled to the second extension and has a threaded hose end configured to selectively engage a water supply line.

Abstract: An apparatus for flushing a fluid drain; the apparatus includes a water supply interface, a drain line interface, and a conduit. The water supply interface is configured to hydraulically couple with a water supply, such as a water supply for a kitchen sink. The water supply interface includes a threaded connector for threadably engaging with the water supply. The drain line interface is able to hydraulically couple with a drain line. The drain line interface includes a stepped adapter which is able to couple with one of a selection of drain lines having disparate diameters, so that the system may be used with a variety of sizes of drain lines. The conduit extends between the water supply interface and the drain line interface, hydraulically coupling the two components.