Solid waste generated in the preparation of food may not be discharged to a sanitary sewer until it has been shredded to such a degree that all particles will be carried freely under the flow conditions normally prevailing in the sanitary sewer. A produce market, meat market or other commercial establishment engaged in the wholesale or retail distribution of food products shall not dispose of their wastes by grinding and discharge into the City sewer where these wastes could be disposed of as a solid waste. Garbage grinders shall not be used for the disposal of plastic, paper products, rags, feathers or other inert materials. (Ord. 19496 § 53, 12-21-10; Ord. 16388 § 7.10, 11-5-91. Code 1995 § 146-281. Formerly 14.80.410.)