Patent ID: 9631347
Date: 2017-04-25
CPC Classifications: E03B

Claim:
1. A system for stabilizing the chlorine residual of a dead end water main for use on a potable water supply system having a dead end water main connected to a flowing water main, comprising: a) a pump for circulating water from the dead and water main to the flowing water main, said circulation pump having an inlet and an outlet; b) a water inlet line having first and second ends, said first end adapted for connection to said inlet of said circulation pump, said second end adapted for connection to a point on the dead end water main; c) a water outlet line having first and second ends, said first end adapted for connection to said outlet of said circulation pump and said second end adapted for connection to a point on the flowing water main; d) an insert tube having first and second ends, said first end adapted for connection to said second end of said water inlet line, said second end configured for slidable insertion into an interior of the dead end water main so that said second and is disposed proximate a dead end of the dead end water main; e) a solid insert cone with sloping ends at both ends thereof mounted on said insert tube adjacent said second end for permitting said second end to be guided through said tube without hanging up on any build up, edge or seam in said dead end water main as said insert tube is moved through said dead end water main, said insert tube extending into a proximate end of said cone, though said insert cone, and out a distal end of said insert cone, and terminating at a point spaced from said distal end; and, f) a computer for controlling said pump so as to pump water through said insert tube from the dead end water main to the flowing water main to stabilize the chlorine residual in the dead and water main.