Everyone seems to know it: Effluent filters at septic tank outlets help extend drainfield life. And a water meter upstream in the house can provide information that helps the owner prevent hydraulic overload.But does anyone care to guess what percentage of onsite treatment systems have effluent filters? Water meters? Both? My hunch is that the rough answers would be: A fairly high number, mighty few, and next to none.Why should that be?Proven benefitsThis issue of Onsite Installer includes separate articles that make a compelling case for both these simple tools. Matt Byers and Randy Dyer argue that the industry needs





