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				  |  |  | Rowington Water TroughsRowington water troughs were opened on both the up and down
						main line on 1st October 1899 to facilitate non-stop running of express trains
						between London and Birmingham. The first water troughs had been introduced on
						the Great Western Railway a few years previously. To work they required a
						specially designed scoop to be fitted under the tender of the locomotive, which
						could be lowered into the water trough by the fireman and the forward motion of
						the train would then force water into the scoop and up a pipe into the tender.
						The end of the pipe is above the maximum water level and just above it is an
						inverted dish to deflect the water down into the tender tank. Vents allow air
						to be displaced and an indicator shows the level in the tender tank. The site
						at Rowington had all the necessary requirements for a water trough; a long
						level and straight section of track without any obstacles, such as level
						crossings in the vicinity, an ample supply of good quality water, which did not
						require continuous pumping and also adequate site drainage, because it was
						inevitable that quantities of water would be splashed during the operation. The
						water troughs at Rowington were fairly typical of Great Western Railway
						arrangements.  They were 560 yards long; constructed in the standard
						method by the use of ten foot lengths of galvanised steel plate 18 inches wide
						by 6 inches deep. The troughs were supported 4 inches above the sleepers, which
						meant that with the standard 5 inch water depth in the trough the waters
						surface was 1.5 inches above the rail level. As it was not possible to end the
						troughs with a stop, as this would present a potential obstruction to the
						scoop, the track was slightly inclined at each end with a gradient of 1 in 360
						over 60 yards. Special free draining ballast was specified to reduce the
						deterioration of the permanent way. The water was fed from a 40,000 gallon
						supply tank at the lineside and multiple pipes supplied the water troughs via
						bottom entry points. The multiple entry points reduced the wave created when an
						engine was scooping up water and also ensured that the water in the troughs was
						replenished quickly. A sophisticated float arrangement controlled the flow from
						the tank to ensure that the water level in the trough was maintained at the
						correct level. Robert Ferris 
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