The DrainMaster System for automatic injection into restaurant grease waste systems from Cape Cod Biochemical Company takes the guesswork out of applying a grease waste maintenance product. It is automatically injected using a timed metering pump that can be programmed to inject as much or as little product as needed on a daily basis. Daily injections lessen the amount of product necessary and reduce service intervals. 800/759-2257; www.septiconline.com.