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Borewell motor when switched off, gives hammering sound. What could be the problem?
Hello, Recently I had a new borewell, 4.5" dia 300' deep. When I switch off the motor I am getting voilent hammering sound. Please advise on what the problem could be and how should I overcome this. raoji77@yahoo.com
j subbarao  posted 6 years 4 months ago