UNDERFLOOR MERGED DRAIN AND PIPING SYSTEM

摘要

PROBLEM TO BE SOLVED: To make a drain piping system simple and compact, make easier the confirmation of the quality of work and prevent a break of sealing water in a trap. SOLUTION: Sloped pipe portions 21A and 21B are provided before and after a penetrated portion in a foundation at the drain main pipe 21 in an underfloor merged drain piping system 10.