highbanker question

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Discoveries »  +  ?  Results 1 to 6 of 6 1Likes TopAllThis Page 1Post By Fabrication Specialists Thread: highbanker question«Prev Thread | Next Thread»LinkBack LinkBack URL About LinkBacksThread ToolsShow Printable VersionEmail this Page…Subscribe to this Thread… Ignore this ThreadSearch Thread Advanced SearchDisplayLinear Mode Switch to Hybrid Mode Switch to Threaded ModeYesterday, 07:29 PM#1Klondike Steve May 2012Georgia5 All Types Of Treasure Hunting highbanker question

Hey! I finally figured out how to get on this great forum. Practical question here. I've been panning for about 1-1/2 yrs. here in N. GA with moderate success. Got a coupla grams last week, so I got the fever bad. I want to move up to a highbanker since I've got some access to private land. Here is my dilemma. I built a nice highbanker out of an old carpet cleaning machine. Problem is that it is 20" wide and 50" long. I'm on a budget and want to supply enough water via a gas powered pump. Should I get a 2 hp 1" pump with 2250 gph or a 6hp 2" clear water pump with 9000 gph? Should I look for a pump with trash capacity or just filter a clear water pump carefully. Both of these pumps can be purchased at Harbor Freight (China) for under $160. Any comment would be appreciated.

Last edited by Klondike Steve; Yesterday at 07:30 PM.Reason: mispelling

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Yesterday, 07:35 PM#2Fabrication Specialists  Jan 2013Yuma, Az43 18 times Prospecting

Good day,

With your box at 20" wide You'll need the 2" pump and that may even be cutting it close honestly. Also if you go with the Harbor Freight pumps see my thread for pump maintenance as it will help tremendously,

Pump maintenance FYI

Let me know if you need anything else,

Thanks, Chris

Goodyguy likes this.

Chris Robertson
Fabrication Specialists
www.fabspecialists.com

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"The bitterness of poor quality is remembered long after the sweetness of low price is forgotten"

Reply With Quote Yesterday, 07:38 PM#3Vance in AK Feb 201092 46 times

Hi Steve.
Some of the guys here can give you technical answers with the exact volume you will need for that sluice (although riffle design will help them greatly). BUT, I will say that I don't think either pump will have the needed volume for a 20" wide sluice (length doesn't really matter for water volume). The 1" definetly won't. My 1.5" Honda WX 15 (4320gph) is adequate for my 10" wide sluice but I think 12" wide would be pushing it very far from the water source.

OOOOpppppssss... I was typing while Chris was posting!

Reply With Quote Yesterday, 07:44 PM#4Klondike Steve May 2012Georgia5 All Types Of Treasure Hunting

Thank you for the quick response. I'll be sure to check out your suggestions for keeping the chincofreight motor running. I've got to start somewhere. I'll try to \attach a picture of my 1st part of highbanker construction. I've got to add another 30" piece to it. A friend is welding up legs and stands.

Attached Thumbnails  Reply With Quote Yesterday, 08:12 PM#5Fabrication Specialists  Jan 2013Yuma, Az43 18 times Prospecting

Good day,
You really would be better going to a 3" pump on something that wide. The 2" "might" get you working, but that pump will be wide open and screaming all day to keep up. Sadly the Chinese engines just don't last real long when you ask them to run at max performance all day long. Also like Vance said it will also depend on riffles, if you're going with just all expanded you might be ok with the 2", but if you want a riffle (Hungarian, Clarkson, etc) or Gold Hog matting to work properly you're going to need more flow. Basically without getting too in-depth, without proper water flow rates your riffles won't operate properly, your material will simply "fall" over the riffle and pile up on the backside and you'll actually start to lose gold. You need water speed to create vortex's to push out the lighter material and settle the gold down and into the underside of the riffle. Truly pump size is one of those things that will make or break you highbanker, dredge, etc. If you can't afford a larger pump I would look to get a narrower box made, or maybe somehow put some metal down the middle and just use half or maybe 12" inches of your current box Also at 20" wide your carpeting, miners moss, matting, etc will get pricey too.

Just some food for thought,
Chris

Chris Robertson
Fabrication Specialists
www.fabspecialists.com

Fabrication Specialists on Facebook

"The bitterness of poor quality is remembered long after the sweetness of low price is forgotten"

Reply With Quote Yesterday, 09:06 PM#6Klondike Steve May 2012Georgia5 All Types Of Treasure Hunting

Originally Posted by Fabrication SpecialistsGood day,
You really would be better going to a 3" pump on something that wide. The 2" "might" get you working, but that pump will be wide open and screaming all day to keep up. Sadly the Chinese engines just don't last real long when you ask them to run at max performance all day long. Also like Vance said it will also depend on riffles, if you're going with just all expanded you might be ok with the 2", but if you want a riffle (Hungarian, Clarkson, etc) or Gold Hog matting to work properly you're going to need more flow. Basically without getting too in-depth, without proper water flow rates your riffles won't operate properly, your material will simply "fall" over the riffle and pile up on the backside and you'll actually start to lose gold. You need water speed to create vortex's to push out the lighter material and settle the gold down and into the underside of the riffle. Truly pump size is one of those things that will make or break you highbanker, dredge, etc. If you can't afford a larger pump I would look to get a narrower box made, or maybe somehow put some metal down the middle and just use half or maybe 12" inches of your current box Also at 20" wide your carpeting, miners moss, matting, etc will get pricey too.

Just some food for thought,
ChrisThanks for the advice. I could use the large grizzly and bottom plate as a fan and landing arrea for material and place a 10" or so sluice at the end of it to optimize flow. I do plan to use expanded raised metal and a possible riffle plate.

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