Today’s disposal models typically last 10 years before needing to be replaced. If you have inherited one from a previous homeowner and think it’s struggling, consider these factors:
Motors – Higher-end motors come with more quiet, inductive motors, ranging from ½ horsepower to 1 horsepower. Budget disposals are in the ⅓ range, generally noisier, and tend to wear out sooner.
Grind stages – Ranging from one to three stages, the more stages a disposal has, the more expensive and thorough the grinding. The higher the number of stages, the less likely it is to experience clogs.
Material quality – More expensive models will be manufactured from stainless steel for optimum corrosion protection and built-in sound muffling. Budget-priced disposals are typically constructed from plastic or polymers and can be 50% noisier.