WATER SUPPLY AND PUMPS 



mixed with the power supply. The power to 

 deliver water will depend on the fall of water 

 av^ailable. This may be from two to fifty feet. 

 The pumping-head may be anything up to five 

 hundred feet and a ram is effective for elevating 

 water thirty feet for every foot of fall. If a 

 pond Is used for a water supply, the height of the 

 water level in the pond above the pit where the 

 ram is located, and the distance from the pond 

 to the ram, should be measured in feet and 

 the measurements sent to the company from 

 whom the ram is to be purchased. An easy 

 way of measuring the flow of small springs or 

 streams, and to ascertain the quantity of water 

 available for working a ram, is to dam up the 

 stream and in this dam insert a short piece of 

 earthenware or Iron pipe to form a spout. The 

 measurements should then be made by two per- 

 sons, one to take the time and the other to catch 

 the water; the latter should have, say, a three- 

 gallon pail and at a signal from the timekeeper 

 should Instantly thrust the pail under the spout 

 and see how long It takes to fill It. This should 

 be done several times in order to secure the exact 



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