Zinc Type:This unit looks similar to others like the electric/magnetic water conditioners and often come with an electric or magnetic type fields. These units will, when operated, release the zinc into the water supply. As the zinc mixes with the water it binds itself to the hard minerals. This has the affect of preventing them from forming a coat on the inner walls of the pipes. The system has an achilles heel and that is the zinc itself. The zinc source itself often gets covered in limescale which completely stops the release of zinc and stops the device from working. These units are more expensive than their electric and magnetic counterparts, but have the same good bits and bad bits. Worcester Boiler Repair London have the correct tools to fit all appliances.Magnetic and Electric:The affect of this unit is not to soften the water, as the chemical composition of the water doesn’t change at all. What they do claim to do is physically condition the water by pushing it through a magnetic or electrical field. The principle is to alter the minerals in a way that will stop them from leaving coat on the walls of the pipework. They are cheap and really easy to fit. They will not interfere with components like boiler filling loops or water filters. They can stop working over a period of time with little or no warning. Worcester Boiler Service London have experience with conditioners.Phosphate Type:The phosphate type of conditioner operates not unlike the water softening tablets that you can purchase in your local supermarket to fit in your washing machine or dishwasher. The process uses trace amounts of phosphate as opposed to zinc which has a conditioning affect on the water. The result being that this treated water is less likely to attract the limescale deposits that form on the inner walls of pipework. They cost more money but do really work. They need to be filled up with the phosphate every so often and won’t work if their dosing holes get blocked.