DIY PVC Dredge Nozzle (Part 1)

For best picture watch in HD720p! This video shows an easy way to make a PVC dredge nozzle that operates on the venturi effect. I built 4 prototypes before settling on this one that works great, has strong suction even with the pump idling. At about 14:10 I explain the parts needed to build your own nozzle.