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  1. #1
    us
    Aug 2010
    19

    infinity jet

    So i recently bought a water pump and a 3" Keene power jet and it kinda works. The setup won't pick up rocks any bigger than 1" and I'd like a little more power than that without having to buy a new pump. So I did a little research on the web and I read this article here:

    http://www.gouldeng.com/gettingbestper.htm

    What I can gather from the article, the infinity jet is a nozzle that shoots water in from all 360 degrees around the pipe rather than from one location like with a standard power jet. He's saying the infinity jet is almost 3 times as efficient as a standard power jet, do you think this is true? Also what do you think would be the best angle for the water to leave the nozzle at?

    Thanks,
    Making the world a better place 5 thousandths of an inch at a time.

  2. #2
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
    1,830
    53 times
    All Types Of Treasure Hunting

    Re: infinity jet

    did you go with pump you were looking at ? what size discharge ? what size is the power jet inlet [high pressure side] how much hose in feet are you running ?
    no matter where you go,there you are!

  3. #3
    us
    Aug 2010
    19

    Re: infinity jet

    I went with the pump that I was looking at. It has a 2" discharge and the power jet has a 1.5" inlet. I was running 8' of hose. Now one of my problems is the hose that I'm using, the flexible black sewage pipe you can buy from lowes or home depot. The reason I'm using this is because it costs $0.50 per ft and the closest place I can get dredging hose from sells it for $5.00 per ft.
    Making the world a better place 5 thousandths of an inch at a time.

  4. #4
    us
    Mar 2003
    Redding,Calif.
    3,730
    1957 times
    All Types Of Treasure Hunting

    Re: infinity jet

    What you are refering to is the Gold Divers patented couple jet with the "adjustable" o ring induction at 360 degrees. Bamboozleajerka junk-John

  5. #5
    us
    Aug 2010
    19

    Re: infinity jet

    I probably am referring to the couple jet. Do you happen to have any pictures of the inner workings?
    Making the world a better place 5 thousandths of an inch at a time.

  6. #6
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
    1,830
    53 times
    All Types Of Treasure Hunting

    Re: infinity jet

    it should be working better than that, but you should splurge for some real hose.
    no matter where you go,there you are!

  7. #7
    us
    :No one knows everything about anything:

    Dec 2009
    Northern Cal.
    Minelab SD2200D-5 inch dredge
    143
    3 times

    Re: infinity jet

    Hello Efret, First of all the pump you have is not a high pressure pump that you find on most dredges, it is what i call a trash pump. They will work fine for a smaller dredge, but once you go bigger than a 3 inch dredge you need a tremendous amount of power. I think your set-up should work. Was your jet underwater? Did you throttle up to full? Keep the hose from your pump to the jet as short as possible. Use good suction or pressure hose, not the crap that comes in a flat roll-junk! Good luck and let us know how it works, Jimmygoat

  8. #8
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
    1,830
    53 times
    All Types Of Treasure Hunting

    Re: infinity jet

    if you are using black corugated ,that is your problem. thats 4" .plus the internal ribs cause too much friction, too much loss . the pump he was looking at was a high pressure. i have a 3" clear water pump [not trash pump] reduced to 2" and mine rips ,you don't want your hand caught between a rock and the nozzel !
    no matter where you go,there you are!

  9. #9
    us
    Aug 2010
    19

    Re: infinity jet

    Thanks for the advice guys. I'll be picking up some real dredging hose as soon as I can. But I've ended up building a couple jet that I'm going to be testing later today.

    Here's some pics let me know what you think:
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    Making the world a better place 5 thousandths of an inch at a time.

  10. #10
    us
    Aug 2010
    19

    Re: infinity jet

    I went out and tested it a couple hours ago and it seems like it's a ton better than the power jet. Although I don't have an accurate comparison because I just used 4ft of PVC pipe as my hose (the pipe I used for the inside was schedule 80 so the O.D. is 3.5" and to big for my crappy corrugated hose). I'll be testing it on the actual dredge at Quartzville creek tomorrow and also ordering some dredging hose. Does $5.00 per ft sound like an O.K. price for 3" hose?
    Making the world a better place 5 thousandths of an inch at a time.

  11. #11
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
    1,830
    53 times
    All Types Of Treasure Hunting

    Re: infinity jet

    hope it works better ,i don't know about couple jets ,i always use powerjets -never had a problem. there will be a big difference between ,corugated and 3" ---should work better.
    no matter where you go,there you are!

  12. #12
    us
    :No one knows everything about anything:

    Dec 2009
    Northern Cal.
    Minelab SD2200D-5 inch dredge
    143
    3 times

    Re: infinity jet

    Hey Efret, I went back and looked at what pump you bought and it is a high pressure pump. Strickman is right. My mistake. It is not like a pump you will find on most dredges though. The intake port and the outlet are both the same size on your pump. On a dredge pump the outlet is always smaller than the intake. I agree with strick, The regular jet should work just fine. Good luck. Jimmygoat

  13. #13
    us
    Jan 2008
    Villa Rica georgia
    gold bug pro,garret,whites,tesoro,bounty-hunter,,.....
    1,830
    53 times
    All Types Of Treasure Hunting

    Re: infinity jet

    mine is a 3" in and out ,i put a 3"x2" bell reducer on it - 2" high pressure hose . and it is stronger than factory .most of the time i run on 1/2 throttle. plus i am running a garden hose with a flusher nozzle.the only drawback on mine is the weight ,it's a lot heavier than a briggs with a keene pump. had to move my pontoons forward about 6 or 7 inches. only paid 200 for motor a pump,it's paid for itself and then some ! i might buy another one for my other 3" dredge with a suction nozzle , the one i am running now has a powerjet. i was thinking about the 2 1/2 h.p. -1 1/2" pump at harbor frieght . i would make a good little 11/2" or 2 " sniping dredge , light weight and back packable. could run it into a letrap with a modified flare [orange caution cone ] like kiwi runs ........
    no matter where you go,there you are!

  14. #14
    us
    Aug 2010
    19

    Re: infinity jet

    Just tested out my couple jet with the full set up and it works 3 times as good. Although unfortunately the hose that connects the pump and the couple jet keeps on shooting off like a rocket every now and then. Thanks again for the help.
    Making the world a better place 5 thousandths of an inch at a time.

  15. #15
    us
    Mar 2003
    Redding,Calif.
    3,730
    1957 times
    All Types Of Treasure Hunting

    Re: infinity jet

    Double clamp the hose and open up the jet a single turn to allow a bit more water into the flow and then you can turn down your pump a little too with the same results. Alfonso at Gold Divers was 1 smart fella and his jets SUCK!!!!!!!! For the best induction angle check your taper to see if between 11-13 degrees too for a bit more efficent push also. John

 

 
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