During flushing water that can be 2 different type mode to do: first, into type to flush; second siphon type to flush. into type is the sample type to flush otherwise siphon type is toilet with a fall of S pipe which have quite strong sewage capability so that during water flush the waste will through the S-pipe can be quicker and cleaner than the sample type one; also can reduce noise. Siphon has two different type as well.
1. Spray siphon: it can reduce stink and good at splash.
2. Swirl siphon: it can anti-odor and good at anti-fouling, reduce noise also