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Our Water Supply 



be natural, or the artificial reservoir which stores the 

 rainfall from a gathering ground. 



As a general rule springs and deep wells produce 

 water that is not harmful to health ; a river supply is 

 influenced by the character of the gathering ground, 

 by the spring water which flows into it, and by the 

 condition of the districts through which it passes. 



The New River, Clissold park 



River water is rendered drinkable by being stored in 

 reservoirs and then being pumped on to the filter-beds, 

 where it is cleaned and rendered fit for drinking. 



When the water has been filtered it is conveyed 

 either by gravitation or by pumping to every house in 

 a particular area. The distributing mains vary in 

 size from the large arterial mains down to the smaller 

 ones supplying streets, or the still smaller pipes which 



