抄録
This study aimed to accumulate the basic data concerned about the design of the siphonic drainage system. We carried out the verification experiments about the flow characteristic in the following circumstances in the cases that the convex rising elbow pipe was connected to the outlet part of the horizontal drain pipe or it wasn't connected. And in addition, we also examined on experiment about the effectiveness of the formula derived from the Bernoulli's equation to calculate the pressure in the pipes when the siphon effect has been started.
