The DrainMaster system for automatic injection into restaurant grease waste systems from Cape Cod Biochemical is designed to take the guesswork out of applying a grease waste maintenance product in commercial applications. It uses a timed metering pump that can be programmed to inject as much or as little solution as needed on a daily basis. Daily injections reduce the amount of product necessary, saving money on service intervals. 800-759-2257; www.septiconline.com.