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Post by smideye on May 18, 2011 18:16:02 GMT 10
Howdy all,
I have just built myself a 2 tier High Banker/Sluice and I am looking at setting up a U shape 1/2" manifold at the top running off a 12 volt 2000GPH Bilge pump.
At this stage I have enough water flow but I have limited pressure! How do I increase pressure without affecting water flow?
Has anyone run a manifold with a bilge pump and what setup worked best in your case.
Penny for your thoughts and a beer to the person who solves my issue successfully!
Cheers and looking forward to your input!
Smideye
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Post by Rowdy on May 18, 2011 20:45:38 GMT 10
Hi Smideye,
Unfortunately I don't think you will ever get enough pressure with a 12v pump. I've tried a 1'' 12v bilge pump and it would only supply enough water if you didn't have to lift the water more than about half a metre above the water source and it was not supplying a spray bar but just a water spreader at the top of the hopper box.
Ended up buying a 2.5hp one and a half inch 4 stroke and I have never looked back.
Rowdy
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Simon
God of the Goldfields
Posts: 519
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Post by Simon on May 18, 2011 22:47:22 GMT 10
Hi Smideye
I'm with Rowdy.....The 12V pump doesn't have the capability to create the pressure. With a petrol pump I have a tap on the hgh backer plus can change the pressure from the spray bars by drilling the outlet holes different sizes. 1.5 mm is a start.
Cheers Simon
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Post by nipper on May 20, 2011 16:59:09 GMT 10
Hi smideye ,the guys comments are certainly true and based on lots of experience,I agree that you won't get the pressure to break up hard pack or clay or move a lot of volume . however I;m pretty happy with my rig with a 12 vlt pump, I use a fine screen about 4mm and any clay I pull out and throw in a bag or bucket to bring home if I think its worth it. I can still get through a lot more material than panning, i just work within it's limits. if I have the fall steep enough it rattles thru nicely, it's quiet and cheap works for me for now. I put some pics and stuff on apost a while back if it helps.
good luck with it mate if you go ahead. cheers , nipper
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Post by smideye on May 20, 2011 17:15:13 GMT 10
Thanks Simon, Rowdy and Nipper, I am planning on taking it out to Hill End on the 2nd of June for a test run. I would have liked more pressure but it would kill the volume of flow. I am also keen to test my new catch tray. Initial tests say it should work, but stay tuned.
I will provide pictures on my return.
Speaking on which, OK! you locals with all the knowledge- where is the best place to go with a High Banker that will find copious amounts of colour in the Hill End area and if anybody wishes to join me and the family, please feel free to come along.
Cheers
Smideye
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kimmy
Sluicer
Take a chance, while you've still got the choice.
Posts: 115
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Post by kimmy on May 20, 2011 19:49:53 GMT 10
G'day Smideye, Cookie and I will be out at Hill End that weekend too, so hopefully we should be able to catch up this time. As for a place to run your high banker, it is a matter of where there is water at the moment. Keep your fingers crossed for a good downpour between now and the 1st of June  We will be in a white '91 Troopy. Cheers, Kimmy |
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Post by smideye on May 22, 2011 14:23:06 GMT 10
Howdy all, ok, Next question.
Does anyone know where in Austrailia I can purchase some miners moss. I have seen it on ebay but only from the states. I would to purchase some and have it ready to go by the 1st of June. I am thinking of running V matting and un-packed miners moss in my new high banker.
Penny for thoughts
Smidy
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Post by wendy on Aug 13, 2011 15:54:04 GMT 10
Hi Smideye, I have also been looking to buy some miners moss, i have found some ribbed sluice matting, but would like to find the moss as well.
Wendy.
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Post by Ric on Aug 13, 2011 23:02:46 GMT 10
Hi Wendy, Welcome to the group  The proper Miners Moss which is generally unbacked is a bit hard to find here in Oz. You can get it on ebay from the states but its pretty costly There's a few similar mats here in Oz but they are either too small weave and also backed or only available in rolls and very expensive. Myself and a few other around here just use the Clarke Rubber "V" ribbed matting. We also use a diamond pattern door mat or the ones with the round holes (approx 25mm dia). These two door mats have the advantage of being self cleaning which gives the fine gold the best chance of settling into the traps. Some mats including miners moss are prone to clogging up and any fine gold will work its way down and out the end of the sluice. What ever is used it is important that it sits down flat on the floor of the sluice. This is important to stop the fine gold getting under the mat and creeping down and out the end of your sluice Cheers Ric |
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