Toilets, sinks and other water/sewer apparatus and fixtures shall be used only for the purposes for which they were designed. No articles, which can be expected to cause blockage, shall be placed in them. Particular care shall be made not to flush sanitary napkins, toys, wipes (of any kind, including those marketed as “flushable”), paper towels or disposable diapers in the toilets, etc. The cost to repair any damage resulting from the misuse of plumbing apparatus shall be borne by the resident which will be considered “Additional Rent” as set forth in paragraph 3 in the Residential Lease Agreement.