| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the number of parts to simplify constitution, reduce the manufacturing manhours, and improve the quality of self-priming action. SOLUTION: A pump 21 is an electric well pump having a pump body 25 to which a suction pipe 29 is connected, and a pressure tank 22 to which a water supply pipe 49 is connected. The pump body 25 is connected to the lower part of a bottom plate 24 of a casing of the pressure tank 22, and a water suction hole part 40 for connecting the suction pipe 29 to a suction opening 41 of the pump body 25, and a discharge hole part 44 for connecting a discharge opening 45 of the pump body 25 to the inside of the pressure tank 22, are respectively formed in the bottom plate 24 of the casing.</p> |
