| Chapter 1: | Water Supplies |
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Plate 6. Farmyard lift pump.
Source. Author's photograph of farmyard lift pump at Tullynally Castle, County Westmeath.
down to the water level. Since considerable quantities of water were involved, it was, therefore, necessary to take into account the physical ability of a person to operate the pump over a period of time. It was necessary to achieve a balance between the various factors: well depth, elevation of cistern, and the capability of the operator with a pump of a certain bore. These factors are tabulated in table 2.
The average person could continuously operate a pump handle with a force of about 25 pounds.14 Assuming a three-story mansion with well water at 30 feet below ground level, the total lift to the roof storage tanks