pit water with sump ejector mounted at the same elevation as the discharge pipe eliminating back pressure which reduces pumping rates sump ejector system with an adjustable timing control allowing the pump to run for various lengths of time a independent discharge line sump ejector with an independent suction line sump ejector with an internal check valve sump ejector with an atmospheric vent preventing backflow and sump ejector with integral backflow prevention device application_number US 80437004 A description detailed descriptions of the preferred embodiment are provided herein it is to be understood however that the present invention may be embodied in various forms therefore specific details disclosed herein are not to be interpreted as limiting but rather as a basis for the claims and as a representative basis for teaching one skilled in the art to employ the present invention in virtually any appropriately detailed system structure or manner referring to the drawing and more particularly to fig1 reference letter u201c a u201d indicates a sump pit having water inlet pipes as shown by letter u201c b u201d an ejector valve mounted to the basement ceiling rafters letter u201c c u201d as best shown in figure 1 an ejector valve letter u201c d u201d the ejector valve as detailed in figure 2 comprising of valve body 6 a valve cover 2 and a solid flexible rubber diaphragm 5 the ejector valve having a lower chamber 25 an upper chamber 26 and being isolated by said diaphragm 5 potable water from a pressure source normally from a city water system enters the inlet 27 of the ejector valve hence pressurizing the lower chamber 25 an adjustable timing control 3 being a needle type valve of standard industry construction its inlet is mounted to the ejector valve body.