www.springhillwaterservices.co.uk. First in a series of How to: videos. In this video Geoff Nemec shows how to open a filter housing when the filter bowl is stuck – a vital step which can seriously hinder the process of changing a water filter. This video applies to mains water and private water supplies. Springhill also supply a range of UV purification filters, iron reduction, pH correction and all types of equipment used on a private water supply.