ASME A112.19.13 pdf download ELECTROHYDRAULIC WATER CLOSETS 1.4 Electrohydraulic Water Closet An electrohydraulic water closet is a siphonic or wash-down water closet as described in ASME A112.19.2M with a nonmechanical trap seal. The water closet incorporates electrical motor(s), pump(s), and controllers to facilitate the flushing action. In this Standard, the term water closet means an electrohydraulic water closet unless otherwise...