I thought it would be good for you to know Bernie Clark did in fact accurately find our small leak in our sealed central heating system. He was very thorough and persistent but continued searching until he was fairly certain he had found it. Due to the cool weather in April and a holiday in May we decided to keep topping the central heating system until the end of May. When we excavated the position Bernie had indicated it soon became apparent this was where the problem was. The leaking joint was repaired and all is now well. Without your help and expertise I am not sure we would have found the leak. Please pass on my thanks to Bernie.
Mr Ablett in Wellingborough
