Problem to be solved: to provide a water exchange pipe equipped with a communication path member inside and outside the tank, by arranging a material disposed in and out of the tank for home use and a wiring and piping of various equipment in a bundle, and enhancing the beauty in the water tank.Solution: the water supply pipe 1 provided with the water tank inner and outer communication path member 13 is fixed and fixed to the water tank, and the wiring in the water tank internal connection route 13 is bundled with the wiring in the water tank apparatus, and the water is connected to the water supply pipe 1 by the pump.Diagram【課題】家庭用観賞用水槽の内から外へ配される物質や、様々な機器の配線・配管を束ねて整理し、水槽内の美観を高める、水槽内外の連絡経路部材を備えた換水用パイプを提供する。【解決手段】水槽内外連絡経路部材13を備えた換水用パイプ1を水槽に固定常設し、水槽内外連絡経路部材13に水槽内機器の配線を束ね、換水用パイプ1にポンプを繋ぐだけで換水できるようにする。【選択図】図1
