Due to Federal Regulations regarding low flush toilets, low flow toilets, and downspout removal, Parks’ advises the use of toilet paper that breaks down in water. Also, items such as plastic objects, feminine products, sanitary napkins, baby wipes, disposable diapers, paper towels, heavy-duty bath tissue and other such items should not find their way into your sewer line. These can jam your pump or valves and cause back up.