Discoloration can occur in a water system when significant increases in flow through the water mains stirs up the natural minerals that have settled during periods of lower flow .   This persists until the sediment is flushed out of the system .
     
   So , what causes an increase in the flow of water in the lines?
    
   This is a common occurrence in the summer months when the temperature rises and water consumption increases .  Our customers use on average 1 . 2 million gallons of water each day .  However , during the sweltering days of summer , that number rises as high as 4 . 5 million gallons a day .
    
   When there is that much water being pumped through the water mains , the velocity can stir up mineral scale that has settled in the pipe and ultimately come out of your tap .
    
   While the color is not aesthetically pleasing , the water is safe .  However , it is prudent to flush the discolored water as much as possible before drinking it .
    
   You will want to avoid using hot water while you see discoloration to keep from pulling water into your water heater .  Also , some of the minerals from discolored water may stain clothing , so it’s best to postpone washing light colored laundry .
    
    
    
   Pat Fawver
   Utility Director
   City of McCook
   pfawver@cityofmccook . com
   PO Box 1059; 505 W C St
   McCook , Nebraska 69001
    ( 308 ) 345 - 2022 , ext . 223
   

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