Patent ID: 9067246
Filing Date: 2015-06-30
Classification: B08B,E03B,E03C,E03F

Abstract:
1. A method of dislodging mineral build-up in a water service line connected to a public utility water main, comprising: measuring a flow rate of less than 20 gallons per minute in a water service line connecting a public utility water main to a plumbing system associated with a real property; closing a supply side valve of the water service line; closing a customer side valve of the water service line; removing a water meter from the water service line to reveal a supply side connection point and a customer side connection point; connecting an extension pipe to the supply side connection point of the water service line; connecting a piston assembly to the extension pipe in a substantially vertical orientation; opening the supply side valve of the water service line to establish a water main pressure of at least 40 psi against a piston of the piston assembly; striking a head portion of the piston assembly to cause a hydraulic pulse to travel from the piston into the supply side of the water service line and thus to dislodge mineral buildup within at least one of the water service line and a junction between the water service line and the water main; and measuring a flow rate of 20 gallons per minute or higher in the water service line.