Below pic is close up of the schist I have blasted clean & washed out.

As you can see in the above pics this bedrock would be under water in a flood & the schist fingers trapping this gold in its cracks & cleverage. No matter what size you want to make from 1'up to 6', you can purchase exhaust pipe with that outside diameter (OD) Power jets measure the same as for pipe and will bediscussed later. The fine gold would have tended to be carried on further down stream in a flood. DREDGE SUCTION NOZZLES By: Dale Russell Suction nozzles can easily be home made, with some ingenuity & a few tools. No products were found matching your selection. If you are using Keene hoses (pressure/suction), the nozzles slip fit in the hoses and don’t require hardware (hose clamp/screwdriver). The gold here was generally of a chunkier, coarse flat nature & not so much fine. Suction Nozzles Lightweight, high performance dredge nozzles that really suck We offer 2 and 4 nozzles with a full array of nozzle extensions and attachments.

The gold in the pan in the above pic is the result from a couple of hours of doing that crevicing & cleaning out of the schist bedrock in the others pics from a river in Central Otago in the south island of NZ. Generally I just shovel straight in to it & hook the motor/pump up to the spray bars. This was the first time I used it with the ply board on the front to take my 2' suction nozzle hose set up.

Like the little high banker above & below. I am a fan of making as much of my own gear as possible. Always a pleasure to share what little I know & have learnt from others & also by experiance.

G'day Hoser John, Yer mate.Kiwi as in NZ (New Zealand) Great site here.

Dredge suction nozzle design