In no circumstances shall any plumber or any other
person install or connect, or permit to be installed or connected,
to the service line or any part of the sewer system any device or
system designed to discharge any substance other than sanitary sewage
or allowable industrial waste into the sewer system. Without limiting
the foregoing, all plumbers or other persons are prohibited from installing
or connecting, or permitting to be installed or connected, a sump
pump, gutter, downspout or other device to conduct streams, storm,
roof, ground- or surface water into the sewer system.