Anyone have experience making a hand dredge for cleaning out cracks?

Below are a couple of links to get you a start. Everyone has their own preference as to what they want in a hand dredge, so you may want to play with a few different designs. Honestly, I like the one that Victor (MadMarshall) uses and IMHO it by far, out performs the one that I have and many others I have seen.

If you really want to save money on building a hand dredge, check out the construction dumpsters at construction sites or dump piles by the road where houses are being remodeled. In the last 10 years, I have scored enough new and good used PVC piping to re-plumb most of my' house and build a few hand dredges. I find that when a project is finished, they often throw out lots of PVC end caps and elbows and I have dozens of them.

Hand Dredge




Frank
 

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In many cases you can return those fittings to your local big box store and they'll give you a gift card!
 

Thanks

I built the above but it was too hard to pull and everything poured out as soon as you stop drawing. The only foam at Home Depot that will fit a 1" pvc pipe was 1/2" and is too snug to be usable inside the 2" pvc pipe.

I'll keep looking...
 

leather cups
 

I use 2 of these. You need 2 because the larger part of the plug wont fit in a 2" pipe. You could grind it down but it comes out cleaner with the bottom piece from 2 plugs.

Shop Oatey 1.5 Dia PVC Test Plug Fitting at Lowes.com

You can get the same plug at home depot. I got a piece of leather from Micheals and cut it about 1/4-5/8" larger than the plug. Sandwitch it in between the 2 smaller pieces of the plug and soak it in some water. The suction is so great if you test it out on your skin you'll give yourself a 2" round hicky lol.
 

I have built and sold over 4000 hand dredges since 2003. I have posted on one gold prospecting forum how to build. Pretty simple. Here is the type of seal I use. 2inchsniperseal_zps98902f90.jpg
 

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For the plunger seal, I've cut out round plugs from a cheap pair of flip-flops. You can make many from a large pair. (Turned on a hand-drill, shaped against sandpaper.) Sandwiched them between a couple of fender washers on the end of the rod. Easy & cheap!
 

BMOLLMAN said:
For the plunger seal, I've cut out round plugs from a cheap pair of flip-flops. You can make many from a large pair. (Turned on a hand-drill, shaped against sandpaper.) Sandwiched them between a couple of fender washers on the end of the rod. Easy & cheap!
Click to expand...

Tennis balls work also! See video by Goldgrabber in the UK.
 

Deserdog, where do you find those seals?


Sent from my iPhone using Tapatalk
 

Some hardware stores carry them. Anywhere from 1 1/2" up to 3" or 4". They last a long time too. I had one gold prosepctor wear one out in a season though. but he said he was a monster, used it 8 hours a day all season!!!
 

Wow!! That is one monster super sucker!! Looks like it is working really well!!1
 

Suckers, indeed,

I bought the best one Gold-n-Sand makes. I am sure there are other quality vendors out there like DeserDog who posted here. I bought a small one at a prospecting Shop in Prescott AZ last summer because I left mine home. The supposedly reputable mfr. made a piece of JUNK! Also, in general, I have found the larger suckers of VERY limited utility for the prospector. The videos showing volumes of material being sucked are a joke. And worse very misleading.

The general concept IS APPEALING (as witnessed by the huge interest and sales) but the effort and awkward ergonomic aspects will kill you in short order - with very little to show for the effort. Lots of improvements, handles, valves, etc. have been suggested and executed - still it is a hard way to get nothing in my experience. I could be entirely wrong of course. Large bedrock cracks, especially underwater, would be a good application....but I rarely encounter one that can't be scooped out much more effectively. There must be thousands of these things laying around, unused.

On the other hand, the smaller bulb type suckers for bedrock work are of fantastic utility. Just my take, and remember I am no expert or have vast experience.

Thurman
 

Having heard from hundreds of my buyers, I have got to disagree when it comes to the larger sucekrs. I do agree with the type that have the check valves, they are just a pain in the !!!! With my 2 inch and 3 inch suckers, I can suck material from underwater faster than my sluice can process it. And a sucker works way better for moving material from underwater than a shovel. When you lift that shovel out of a hole, you will see water draining right out, there goes a bunch of your gold.

I have cleaned out a lot of small cracks and crevices with my own original gold sucker. Works great, much faster than a turkey baster, and way better suction.
 

Thurman said:
Suckers, indeed, in general, I have found the larger suckers of VERY limited utility for the prospector. The videos showing volumes of material being sucked are a joke. And worse very misleading.
Thurman
Click to expand...

Well my video's show it how it is. Every tool has its own application and place where it works. I built my 3" for that place and it works great. Many people have borrowed it at different outings and many have copied it and made their own. It's proven and there's nothing fake in that video. Mostly what I have seen is a lot of people with nothing to show make comments against the people who take the time to make the videos and show everyone how it is...
There is a huge difference between the gold-n-sand store bought and the plans that I put out for people who want to make their own quality equipment. In fact you can not compare the 2 in any way. If yours didn't work, that's the breaks... Mine works fine because what makes our equipment work is the sole responsibility, know-how, and experience of the operator. I didn't just use mine for a few minutes and then toss it aside, I learned what makes it work the best. There's at least 4 different video's showing us using ours on different days for hours on end.

Here's your link >
Gold Prospecting Equipment by Gold-N-Sand
You can easily see there's no comparing

Then Rodney made his after using mine -




Then so did the Deal, Eric Deleel from "Legend of the Superstition Mountains" Eric "Deal" Deleel - Legend of the Superstition Mountains Cast - HISTORY.com -

Eric used mine first in a few different movies and at different club outings listed on my channel along with many other miners. Here's one of many
 

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Good evidence,

Watch these videos, and hundreds like them carefully. They show how little material, at great physical expense can be moved by suckers of any type or quality. It is a VERY, VERY HARD WAY TO GET NOTHING unless the material is rich. And as we all know, it rarely is. Sure, you can get some gold by any method. Personally, I like the Gold n Sand quality and design. The flow valves are indispensable in my humble opinion. It is fun....just sayin.

No intent to bad-mouth anyones methods, preferences or products. Just trying to help those who are thinking of making or buying a hand dredge, manage their expectations and find storage space for it... For craftsmen, I would recommend building your own as there is a wealth of information out there. Take the advice of buying quality key components. Start with a very small one. It may end up being your favorite!

Best regards to all, Thurman
 

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