The study involves experiments that use three water-saving toilet types; type I, type II, and the common type, which are categorised by JISA5207-2014 'Sanitary Wares'. The toilets are each connected to an experimental fixture drainpipe, and a fixture discharge characteristic experiment and a carrying performance experiment are implemented, using experimental waste substitutes. By the experiments, the study aims to understand fixture discharge characteristics and carrying distances that are affected by different amounts of flush water, flushing methods, etc., while examining average drainpipe-connected fixture discharge rates, which serve as carrying limit values, to provide basic data for plumbing design.
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