Little Plumber - LP1 Water Softener - Perfect For 1-4 Bedroom Houses - Easy To Install - Removes Existing Limescale & Saving up to 70% Heating Costs - Protects & Extends Life Of AppliancesHOW IT WORKS: Our best selling LP1 is an Electronic Water Softener and Descaler that softens hard water. A series of low frequency radio frequencies can be induced electronically into the water, which will break down and remove limescale and prevent limescale from forming. EASY INSTALLATION: No plumbing skills are required! Simply wrap the coils around your copper or plastic cold water pipe (at least 10 aerial turns) and plug the USB into 1amp power