New Zealand Gold Fossicking Forums

Hiya, I too have been interested in this system for a while. I have trialled the idea on a small pvc version with enough success to upscale it to a 2 inch power jet. The original idea was to save me lugging a pump onto site but now with it working I realise with the set up time and the weight involved it would be quicker to just carry a pump onto site! but not half as much fun, and its absolutely silent so even the birds still come down for a play..I will try to upload a couple of short movies I took, but they aren't great as I was worried I would drop my camera in the water, and that only left me one hand to use the sucking end but it gives a good enough image of it in action! But you get the idea. I have about 15m of drop over 100m which gives sufficient oomph to create about 20psi. I had 50m of 100mm pvc layflat hose into 50m of 50mm fire hose into a reduced stainless powerjet and a 50mm suction line. On the video I had a galv. tin shield made up to slow down the water flow, not realising how effective the system would work, so there is water (and probably my gold) going every where!), but for a first time effort I wasn't too worried. Since this was taken my 100mm line was fleeced by some light fingered sod who will get there's once karma catches up with them, but will get into it again once the days warm up, not that it feels much like winter yet. The detector will keep me warm for now.