Some dredge basics
In any dredge, you will have 2 types of suction devices; either a suction nozzle or a power jet. A suction nozzle only works with higher pressure pumps. The recommendation is a minimum of …
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DIY small scale hand dredging understanding the basics
The power jet is one of the most important components in a dredge system. There is a bal-ance of the right components proper jet design that matches the pump curve, clean pumping . and …
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Suction Nozzle or Power Jet?
Power Jet Gold Dredge. A Power Jet is more efficient because there is a shorter pressure hose from the pump and therefore less friction losses. The Power Jet enters the suction line just before the sluice, which means the gravel is being …
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Diy dredge nozzle help | Treasure Hunting & Metal Detector …
This is my 1 1/4" venturi suction nozzle for my electric micro dredge powered by a 24v 3700gph bilge pump. I figure the pump will produce about 10 - 12 psi. The 3D printed …
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Looking for plans on a power jet!
It depends on the pump pressure and how big your dredge is. You can buy the jets alone also or use pipe with a washer welded in for that size. Start at 1/2" and if you need …
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Has anybody made their own dredge?
One thing to keep in mind, the higher the power jet is from the surface of the water, the more horse power needed in order to have enough suction at the end of the nozzle, thus …
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Suction Gold Dredge Basics
The most common device is the power jet, which is installed in between the sluice box and the main suction hose. A power jet pulls material up and into the sluice box. An alternative is the suction nozzle which installs on …
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Plan and design your own home made suction dredge for …
How to plan, design and build your own homemade gold suction dredge so you can prospect and mine for gold: from
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4. The Plain Suction Dredger
The characteristic of a plain suction dredger is that it is a stationary dredger, consisting of a pontoon anchored by one or more wires and with at least one sand pump, that is connected to …
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12vDC 1.5" Dredge
My pla is to use 2 bilge pumps for this and have 1 run the suction nozzel and the other working a power jet. Hose eill be 1.5 or 2 inches and the hose feeding the suction nozzel …
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