Yes – in two ways. Disposals add greater loads. Without frequent BIO-CLEAN treatments, faster accumulation of solids in the tank occurs. Most automatic dishwashing compounds, either powder or gel, contain chlorine, which is damaging to all biological activity. For the least overall problems, don’t use the disposal for material that could go into solid waste or be composted. Use non-chlorinated, biodegradable dishwashing compound and treat regularly with BIO-CLEAN. A complete list of recommended products is available from your authorized BIO-CLEAN dealer.