Search for: Tech Self Help Articles » » Buying a System FAQs » Buying a System FAQs How do the systems work? Dealer or Do-It-Yourself? Where can I find a dealer? What should a system cost? Gen 1.3 Drum Unit or Gen 3 Tankless Unit? Insecticide FAQs Space, Power and Water Requirements What if I’m outside the U.S.? How effective are the systems?