This pure water starter kit is designed to give you everything you need to get started with water purification. Combining a portable BigBoy V3 back pack & 11 Litre DI Vessel. Complete Kit Includes: 1 x 20L BigBoy V3 Backpack 1 x 11L DI Vessel 1 x TDS Meter 1 x 25L Bag of Unger Resin All necessary hose & Connectors Please note, this kit does not include a pole or brush head. DOES THIS HAVE EVERYTHING I NEED? This starter kit has all the parts you need to purify water. You may wish to add a few items to make this a fully working starter. Here are a few things we think are worth considering: Uni-Valve Phantom Water-Fed Pole Extra 25L Water Containers HOW DO I PURIFY WATER? Simple. Just connect your DI Vessel to a water source with the provided fittings, turn on the tap, and voila! You have pure water. DO I NEED TO ADD CHEMICALS TO THE WATER? No, the pure water created by running tap water through the DI Vessel, is all you need to clean windows (read more about pure water here). If you are cleaning stubborn stains on conservatories and other plastics, you may need a little extra scrubbing power such as our bronze wool adapter. Or to pretreat the surface with a cleaning agent, see our best seller FaceLift RazrWash. Please note that applying chemicals should be done separately and not with the same unit used for pure water. See our range of Chemical Sprayers & nozzles HOW TO SET UP YOUR BACKPACK: