Section 15. Floor or other drains will only be permitted when it can be shown, to the satisfaction of the Board or Bureau of Health, that their use is absolutely necessary, and arrangements made to maintain a permanent water-seal in the traps, and be provided with check- or back-water valves.
Section 15
Act 272 of 1911, § 15, under FIRST CLASS CITIES, PLUMBERS LICENSED.
Act 272 of 1911, § 15