A. Overflow roof drains shall not be connected to the primary roof drain lines.
B. Overflow roof drains shall drain to a point where they can be easily seen for early problem detection.
C. Fill valves for fire sprinkler storage tanks shall be equipped with an approved air gap on reduced pressure backflow preventer.
D. Safe pan drains shall be no smaller than one and one-half inches (11/2") unless first approved by the administrative authority.
E. Trough drains are prohibited unless first approved by the administrative authority.
F. Drainage for gravity dump washers shall be by direct hookup to the building drain or to a sealed sump connected to the building drain. There shall be a floor drain immediately downstream of each gravity dump washer hookup. (Added during 1/88 supplement: prior code § 5-14-12)