another nice little mooch is this tower explored last yr (september) with a few buddies its still unchanged as most of the stuff round stanley docks now is
The hydraulic tower was built in around 1852-55. Built from granite blocks, the octagonal tower housed a large accumulator, designed to store water under pressure. This water was then used to supply hydraulic power to capstans, lifting machinery and presses around the dock. The tower was adjoined by a pump house, built from brick with a tall chimney. Here a stationary steam engine powered a pump to keep the accumulator charged. Today the pump house is little more than a ruin, although the accumulator tower remains virtually intact.
apologies for the pic quality i was just getting used to a new camera at the time
the good old 6 faced