3717-1-05.2(C) Mobile water tanks

Inspection and cleaning port - protected and secured. If a water tank is designed with an access port for inspection and cleaning, the opening is to be in the top of the tank and:

(1)

Flanged upward at least one-half inch (thirteen millimeters); and

(2)

Equipped with a port cover assembly that is:

(a)

Provided with a gasket and a device for securing the cover in place; and

(b)

Flanged to overlap the opening and sloped to drain.