We were asked to investigate a blocked and slow running drainage system within a dental practice in Winchester. The two owners had problems with their drains for several months after the floods in early 2014. One of the large franchise drain companies had already investigated this and had concluded that it was just a normal blockage which they cleared. Wessex Drainage Solutions were called to investigate this further as the drains were starting to smell, causing great concern to the proprietors as the hygiene of a dental practice is obviously very important. Works had to be carried out, out of hours in order for the practice to remain functional. Wessex Drainage Solutions identified the main drain runs and that they were half full of sediment which was later discovered to be teeth filling residue, this had obviously built up over many years. Wessex Drainage Solutions carried out the cleaning and survey of all the underground drainage and is now in talks with the architect tasked to rebuild the flood damaged areas.