Pumper Magazine - Dedicated to the Liquid Waste Industry. Pumper serves owners and managers of businesses that maintain and install residential and commercial septic systems, rent and service portable restrooms, and provide industrial vacuum service. Founded in 1979 by Bob Kendall and Pete Lawonn in Three Lakes, Wisconsin, Pumper Magazine has served the liquid waste industry for more than 30 years with products, used equipment, practical business advice and features on successful companies. Septic Tank Service/Pumping, Portable Restroom Rental/Service, Septic System Installation, Drain/Sewer Cleaning, Grease Pumping/Disposal/Treatment