P79 Installation drawing of children's toilet.
The urinal reservation is consistent with normal.
Specific water supply pipe diameter:
See if you are self-closing toilet or flushing toilet, self-closing DN25, flushing toilet DN 15.
Urinal DN 15
Specific drain pipe diameter:
Toilet De 1 10
Urinal De50
Specific reserved hole size:
Generally larger than the pipe diameter by 2. De 1 10 can reserve 200 holes, and De50 can reserve 100 holes.