And gravity tends to get the better of the lever that controls water temperature in the shower, meaning you may get pelted with increasingly hot water.
This imposing Meccano-like structure (yet another triumph of Victorian engineering, although the original sluice dates from 1651) is situated at a convergence of waterways and channels just outside Downham Market and controls water levels in the Fens.
Water and sewage have been privatised again, albeit it with one big difference: one huge private monopoly, Thames Water, owned by a consortium led by the European arm of an Australian bank, controls water supply and sewage treatment in the capital.
And this means technology that controls water use is doubly important.
The bioreactor monitors DO, ORP, pH and water flow rate and controls water pump rate and carbon feed rate.
Evaporation is important in the evolution of pit lakes as it acts to concentrate various constituents, controls water level and changes the thermal characteristics of the water body.
