the problem is they are using little pissy 4/6" drainage pipes and tiny premade inspection chambers that can't handle the volume of water and tapping them into the old existing stuff been around since Victorian times in the big city's and towns ?
because the water companies don't give a f**k,wasting drinking water for fun and pumping human shit into the rivers and sea....Wales supplies England and we still have a f***ing hosepipe ban ffs?