A friend gave me this little backpack dredge. It came with a nifty little "Couple Jet" nozzle made by Gold Divers, Inc., formerly of Mound House, NV, but now out of business and retired. The dredge didn't come with an engine or pump and I'm trying to figure out what would be the best pump/engine ...
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The first thing to remember with a plug-up is to stop sucking material into the suction nozzle as soon as you realize you have one! All of us, sooner or later, experience the joy of loading a suction hose full of rocks and gravel. ... follows the hose back up to the dredge, jams the rod deep into the jet, etc., etc., and finally decides there ...
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If you want to do serious excavations with a suction dredge, you must leave the opening of the suction-nozzle as large in diameter as possible, while still reducing it enough to …
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From the lightest, most portable back-pack dredge to a fullly equipped 8 inch production system, our experts can analyze your project and your needs to get you set up with the perfect package. Take a look at the wide range of world-class dredges we offer:
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Jetnozzle Power Washer is a pressure nozzle attachment for hoses. It also claims that it works for powerful pressurized washing. But are these claims legit?
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A (single hose) nozzle is used in conjuction with a power jet. While this can be used in shallow water, if it's removed from the water for more then just a fast burp, the hose will lose it's prime, the stream of water from the jet will shoot up the flare and could possibly blow gold right out of the box.
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Dredge Suction Nozzles. Ideal for shallow water dredging - these dredge suction nozzles are precision manufactured by Jobe and Keene from thin-wall plated steel tubing with machined orifices to create maximum …
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The Hydro-Force 250 can be used with almost any 2.5" dredge or highbanker, or it can be powered by an inexpensive trash pump. It only requires a single pressure hose, just like a conventional suction nozzle. …
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The GoldiBox Electric Backpack Dredge is for the recreational prospector & hobbyist who wants to dredge with the lightest gear available, remain stealthy, and recover unreachable gold. Our Electric Dredge has many innovations and features designed for exceptional gold recovery. GoldiBox Backpack Dredge/Nozzle Combo Key Features:
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At least six other lawsuits have been filed in California which challenge both the Moratorium and the new suction dredge regulations which DFW ultimately adopted in 2012. ... prospecting and other types of prospecting that do not use a suction nozzle within an ... on floating platforms to provide air for breathing and a jet of water to help ...
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All of the oversized rocks that cannot be sucked through the dredge nozzle must be moved out of the hole by hand or with the use of winching equipment. When undercutting the streambed, or taking apart the dredge hole, there is …
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How does a gold suction dredge suck up gravel? Also learn the differences between a power jet and a suction nozzle. Click on dredge images above to enlarge. Suction …
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One of the most popular pieces of equipment for amateur and seasoned prospectors alike is the suction dredge. Dredging for gold involves using a suction hose to vacuum up sand, dirt, and clay, then …
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This can happen in minutes if you are feeding the nozzle at production speed! The second common reason for flipping a dredge is floating it out into faster water than the design can manage. ... you must observe the …
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Teamwork extends up to dredge tender, as well, if you have one. A dredge tender should always immediately attempt to remove a plug-up when the water velocity slows down through the sluice box. Many times, this effort is done for nothing, because the nozzle-operator has set the nozzle down over a large rock in the hole for one reason or another.
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After several seasons of use, dredge hose becomes cracked and needs to be replaced. I have tried to repair the cracks and holes in my 5-inch yellow hose with silicone R.T.V. glue, that didn't work; so I knew I would be replacing it. ... It does develop small holes where it is clamped to the nozzle and the jet, but these areas are at the end ...
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As a side note on this, my commercial dredging buddies and I ate many hurried lunches on deck during the winter months (even while it was snowing) while the dredge continued to run at operating speed (with a rock placed over the suction nozzle to slow the water in our recovery system), pumping warm water into our suits.
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Using the blow mining method is the same thing as using a blaster nozzle on a suction dredge to cut through and break up hard-packed layers and bedrock that a dredge nozzle won't take apart. But in this case, we were mainly using the blow nozzle to help move material out of the way and help us get down to the bedrock cracks faster.
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Keene 3" Jet Flare Dredge. The KEENE 3" JET FLARE design provides excellent fine gold recovery. The jet flare and water level sluice box gives 30% more suction allowing dredge depths of nearly 30 feet.
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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 when this all comes together you have serious gravel moving machine. The power jet is typically located at the discharge end of the system if possible, creating the
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How to plan, design and build your own homemade gold suction dredge so you can prospect and mine for gold: from . Build A Do It Yourself, Home Made Suction Dredge. ... First you have to decide if you want a suction nozzle or power jet type. The suction nozzle puts the high-pressure water in right at the nozzle.
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6" Dredge CApable of processing several times more material than our smaller dredges. Our 6" dredge is one of our personal favorites. It is relatively lightweight and can be transported and assembled with little more effort than that required for a 5" dredge, yet, it is capable of processing several times more material than those smaller dredges.
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A dredge designed to work on flotation, with a compressor for underwater dredging, is almost always equipped as a power jet. Since a power jet and supply hose must be kept under water at all times, it won't work very well in shallow water. Shown below is a wide variety of gold dredge nozzles from several reputable manufacturers.
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Motorized underwater suction mining in California without a "dredge!" ... I would advise the use of rigid pressure hose between the pump and nozzle jet(s) on this type of system. It is difficult enough to keep the kinks out of lay flat pressure hose outside of the waterway. ... Tagged with: dave mack, Dave McCracken ...
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A dredge designed to work on flotation, with a compressor for underwater dredging, is almost always equipped as a power jet. Since a power jet and supply hose must be kept …
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The 12″ nozzle extension for the GoldiBox 2″ Dredge Nozzle is a must have tool allowing you to dredge deeper for hard to access gold. The nozzle extension fits onto the end of the suction nozzle and has a bell taper at the opening to minimize jams.
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WHAT IS A SUCTION DREDGE? The image below shows a typical 5-inch suction dredge. This dredge has an 8 HP engine driving a water pump and an air-compressor.
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Buy Pressure Washer Sewer Jetter Nozzle, Stainless Steel Dredge Nozzle Pipe Dredging Nozzle 1/4in Drain Outlet Cleaning Quick(Middle Head): Accessories - Amazon FREE DELIVERY possible on eligible purchases
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About this item . Package included 2* brass hose shut off valve + 2* brass water hose high pressure jet sweeper sprayer nozzles ; High pressure hose nozzle sprinkler, hose attachments, powerful jet stream and …
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A friend gave me a small backpack type dredge. It came with a dandy little Couple Jet nozzle made by Gold Divers, Inc. It's missing the pump and engine and I'm trying to find the best pump for it. So far no one has been able to identify the dredge. I don't think Gold Divers ever made a...
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The Mega 6 Nozzle produces extreme flushing capabilities for large duty lines, including large sanitary lines, medium and large storm drains and culverts.
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Only those persons actually operating the nozzle of a suction dredge within an active waterway in California are required to have a Fish and Game dredging permit on hand. The Department of Fish and Game allows dredging along our Klamath River properties between the Scott and Salmon Rivers on a year-round basis, and up the Klamath from its ...
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