The Whole House System installation must be performed by a licensed plumber or the warranty will be voided. DO NOT INSTALL indoors. Install system outdoors or inside garage only. The Premium Deluxe Whole House System is a multi-step, point of entry filtration system for your entire home. It is capable of handling all of your water filtration needs. The Tornado unit itself, may even be installed above ground or below ground. Installation is simple and maintenance is easy with the DT Whole House System. Our filters are non back-washing units with some significant advantages. There is no wasted water and no use of energy when using one. It is less expensive than most whole house filters and requires little to no maintenance during their lifetimes. When the materials are exhausted you simply purchase a refill kit and replace the old material with the new. Our newly formulated KDF cubes allow both the KDF and carbon to reside in the same tank with no channeling or packing problems. Our system can produce an uninterrupted supply of pure, filtered water throughout the home. All the water that is used for drinking, cooking, bathing, washing and landscaping also benefit from being purified by one central system. The Whole House Systems safeguard health and protect plumbing and appliances from staining, corrosion, and scaling. It will remove hundreds of contaminants - including chlorine, DBPs, lead, harmful heavy metals, asbestos, iron, hydrogen sulfide, and hard scale. Dream Tree filtered water is noticeably softer--without the use of salts or chemicals. This system is for homes using city water. In no event shall Dream Tree Family be liable for any direct, indirect, punitive, incidental, special consequential damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products. WARNING: The System Hardware Tubing, Connectors, O Rings, Housing may have to be replaced and/or lubricated every year depending in your quality of water and contaminants. Filter REPLACEMENT Maintenance is continuously REQUIRED and dependent on your water quality. (Must be installed by a Licensed Plumber ONLY.) Consult your local licensed plumber for replacement or maintenance questions.