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  1. #1

    Sep 2012
    2
    All Types Of Treasure Hunting

    PVC floating dredge

    I'm thinking of building a PVC framed floating dredge from 2inch PVC and just wondering what you guys think about it and or if it will work. I will be useing 2 15 Gallon poly drums as pontoons. The pontoons wont be realy attached but more traped by the frame and 8in legs that go down from the frame that will dubble as leggs. The PVC pipe frame will be sealed just so you know. I have a sluce box 10in x 36in. One thing I'm not sure about is how many GHP pump should I look for. I found one that is a pacific hydrostar 2" clearwater 212cc and wieghs 61lbs it dose 9000GPH . The over all size of the dredge is 29inches long and 42 inches wide all parts and componets costing under $700-800 dollars Try to keep the cost as low as possible I have seen a few people useing PVC clean out fittings as a power jet with road cone as a flare think ill try that as well.

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  3. #2
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, L-rods
    4,422
    1417 times
    All Types Of Treasure Hunting
    Quote Originally Posted by Grance View Post
    I'm thinking of building a PVC framed floating dredge from 2inch PVC and just wondering what you guys think about it and or if it will work. I will be useing 2 15 Gallon poly drums as pontoons. The pontoons wont be realy attached but more traped by the frame and 8in legs that go down from the frame that will dubble as leggs. The PVC pipe frame will be sealed just so you know. I have a sluce box 10in x 36in. One thing I'm not sure about is how many GHP pump should I look for. I found one that is a pacific hydrostar 2" clearwater 212cc and wieghs 61lbs it dose 9000GPH . The over all size of the dredge is 29inches long and 42 inches wide all parts and componets costing under $700-800 dollars Try to keep the cost as low as possible I have seen a few people useing PVC clean out fittings as a power jet with road cone as a flare think ill try that as well.
    Did a search and came up with this photo of an unfinished one..... That's all I have
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  4. #3
    Charter Member
    us
    I can dig it! "WP"

    Mar 2007
    Bounty Hunter's, Whites TM 808, Whites GMT, L-rods
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    1417 times
    All Types Of Treasure Hunting
    And this one.......strapped to an air mattress
    Attached Images Attached Images  
    ~Diggin The Adventure~
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  5. #4
    us
    Oct 2009
    4,297
    1777 times
    All Types Of Treasure Hunting
    PVC is designed to hold bursting pressure inside the pipe. It has very little strength in flexion, along with the problem of cracking of chipping if it bangs on a rock. Of course, then you have to very sure you have the ends completely sealed.

    I personally wouldn't use a PVC frame, but it's your equipment you are risking, not mine.

  6. #5
    us
    Mar 2003
    Redding,Calif.
    3,280
    1296 times
    All Types Of Treasure Hunting
    Too much weight for floatation provided and love to roll over and play submarine. Just go to dry cleaners,hotels, city dump, or junkshops as 25 gallon barrels abound for next to nuttn' and provide righteous floatation-John
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  7. #6
    us
    Jan 2012
    Chickasha,Oklahoma
    346
    72 times
    Prospecting
    Here is mine but it is wide and has metal frame.NOT FOR FAST WATER as John says it will submarine. I am building a new one for my other dredge with 15 gal barrels

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    And a video
    Last edited by okbasspro; Sep 26, 2012 at 08:34 PM.
    "If the Gold dont care neither do I"
    Shawn Pomrenke

    4" Proline 2" Jobe combo 2.5" Keene

  8. #7
    us
    Jan 2012
    Chickasha,Oklahoma
    346
    72 times
    Prospecting
    Quote Originally Posted by Goodyguy View Post
    Sooo....... is it white and the photo was taken in a snowstorm?
    LOL Had to edit to get pics.
    "If the Gold dont care neither do I"
    Shawn Pomrenke

    4" Proline 2" Jobe combo 2.5" Keene

  9. #8

    May 2012
    633
    194 times
    All Types Of Treasure Hunting
    He said he'd be using 2 15 Gallon poly drums as pontoons.

    I don't see pvc as a practical structural element. Sure, it makes nice highbanker legs and whatnot. But if you break a leg on your highbanker, your engine isn't going for a swim.

    I have seen PVC tube chairs at the thrift stores, so maybe something could be worked out. I just picture heavy and breaky.

    I see bunches of things all the times at the trhiftstores that would make nice framework. Camp Cots,..

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    ..crutches, walkers, lawn chairs. That, some mule tape and some boy scout knots,...

    Tippy is overcome by ballast. Could be something as simple as canvas bags {take your canvas bags, take your canvas bags,..} loaded with weight (know anywhere you can get sand or gravel?) and hung underwater from the dredge.

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    Down Chicago?s Drain

  10. #9

    May 2005
    St. Louis, missouri
    2,778
    485 times
    Grance for the amount of $$$ you stated (700/800) you could go out and buy a nice used 2 inch dredge and not have to fool with it or make it work, and be done with it! your PVC idea will be heavy and brittel in the (cold)water. sounds like youd be better off with a stand for the sluice and build a flair so you can dredge.

  11. #10
    us
    Feb 2006
    GARRETT PRO
    10,702
    803 times
    Why not use some truck tire inner-tubes and build a stable quad-base?

    Should stand up to rough water conditions.
    The more one learns the more he understands his ignorance. I am simply an ignor ant man trying to lessen his ignorance
    Those with the most birthdays live the longest

  12. #11
    us
    Mar 2003
    Redding,Calif.
    3,280
    1296 times
    All Types Of Treasure Hunting
    3 way works good also as a t configuration with 2 under the engine is a old school design. John..... thats a 6" under the Perdone crossing bridge back in about 1995 or so I believe with 3 way.
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    Last edited by Hoser John; Sep 28, 2012 at 08:30 AM.

  13. #12

    Sep 2012
    2
    All Types Of Treasure Hunting
    The local odd fellows lodge donated an old 1inch square tubeing coat rack to me the other day its big so im going to cut it up and see what i can make frame wise out of it. I would buy a used one but bilding and problum solving are more fun now on to the pump. Not sure how much GPH my 10x36 sluce will need will the pacific hydrostar 2" clearwater 212cc be good enuff

  14. #13

    Jun 2012
    Cackalacky
    arrr, just need me nose
    213
    73 times
    Prospecting
    Call around to your local scrapyards, find the one who re-sells to the public - the one used by artists and backyard fabricators

    They'll have more useful parts and pieces than you ever imagined for a whole lot less than you'd think

  15. #14
    Charter Member
    us
    Crevice Vac, Royal Gold Drywasher, Royal 18" Pick, Miller Table, Gold Bug Pro, Sun Ray Gold Pro Headphones, Blue Bowl-Fossickers Fine Gold Recovery System, 12" Custom Gas Powered Trommel, Google Earth, and so much more that my wife does not know about, LOL.

    Sep 2012
    Southern Arizona
    Gold Bug Pro With 5" and Elliptical 5" x 10" Coils
    1,292
    845 times
    Prospecting
    2" will not work. First it would not support the weight, you need volume of air. What you need is 8" or larger but then the weight of 2 - 5 foot pieces of 8" and the end caps is not going to be light. I have a bunch of these I get weekly from where I work. I put them on craigslist and sell them all the time. These are 15 gallon barrels.

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    Last edited by AzViper; Oct 06, 2012 at 11:16 PM.

 

 

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