It shall be unlawful for any garage owners or proprietors, both
public and private, and owners of automobile washstands to permit
or cause sand, oil or grease, as well as all solid substances, to
enter or flow into any of the sewers of lines leading thereto in the
Borough or to permit or cause sand, oil or grease, as well as all
solid substances, to rise in any catch basin or pit level with or
above the overflow pipe therein leading to any sewer line.