Conclusion of the two-part documentary about the sewage workers of Severn Trent. Pete and Shawn unblock the sewage well at one of the dirtiest, deepest pumping stations in Staffordshire, before dealing with a blockage outside a prison. John and Jason delve into a blockage in the sludge pump after a storm, and company boss Liv Garfield reveals how talking about her job can kick up something of a stink around the dinner table.
