 Another three pumps were installed on the former Sandtoft Airfield (now the location of a Trolleybus museum) at Wood Carr pumping station, built in 1978, and a single pump was installed at Belton Grange in the following year.All three stations discharge water to the Hatfield Waste Drain.The Internal Drainage Boards also had to upgrade some of their pumps to cope with the extra volumes of water.