Qwater Well Developer produces the patented (US Patent 6,868,904) Production and Environmental Series well development tool utilizing the surge block method and ball check valve. This system is the only product on the market that effectively develops the well and purge clays and silts all in one step without tripping out the casing. This development process maximizes the well yield and lowers water turbidity. The Environmental Series QWD are designed to be disposable after each use and should be connected to a standard rigid 1/2 inch PVC or polyethylene coiled pipe to be used as a push-rod and riser. The Production Series QWD is designed for multiple uses and comes with a 1 ½ inch pipe threaded body for attachment to a wire line or drill rod. Visit our web site at www.welldeveloper.com for additional information and instructions.