In Cumbria, under an ordinary looking field lies a massive main trunk sewer that serves more than 100,000 residents in Carlisle. Cameras take a look inside.
In Blackpool, a pumping station on the seafront has been shut down for a vital overhaul and in rural Cheshire, the water for a local community has to be temporarily shut off.
In North Wales, engineer Luke and his team of mega plumbers are mid way through a project to replace a problematic two kilometre section of pipe that has a history of large bursts.
In Liverpool city centre, a crack team of drainage engineers goes underground to shift a massive concrete slab that is reducing the sewer flow.. Rookie waste-water engineer Bunty unblocks a stinking drain.
Engineers try to find and fix a massive leak on the busy A6 road in Stockport. Steve and Oz unblock an overflowing drain in a customer's garden, while Luke and his dogs try to sniff out a leak in a field in Cumbria.
Ash and Mike tackle sewerage coming up into the garden of a home. United Utilities' team of specialist divers clean the giant outfall pipe off the coast of Blackpool. There's fun on the farm as a team tackle a blocked pipe beneath a field.
