recirculating sluice box

[tweeta_bear]

here is the supply tube i made... im wondering if the holes are to small.

 

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[Jason in Enid]

I see you put a damping mat in the header, but it looks like it's "backwards." The water should flow under the mat, not over it and the mat should be able to lay flat on the bottom. Yours is curled because the flair is angled.

 

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[tweeta_bear]

i dont think it pushes enuf water to go under. i was gonna use the flap to try to even out the water flow. should the flap your talking about be at the head of the flare or at the end where the rubber mat is? my flap is pretty stiff.

 

[Stanislaus Gold]

Instead of using holes in your spray bar, Just cut a straight line down the row of holes , I don't have a picture, I put mine on the table saw and cut a thin line all the way thru one side of the pipe ,right down the old row of holes. HARD TO EXPLAIN but it works great for '"even" water flow

 

[tweeta_bear]

just a saw blades width? or 2?

 

[Stanislaus Gold]

I use only 1 cut line, but you can add two , to allow more water and less "plugs" in the spray bar holes from stray dirt and sand ,

be sure NOT to completely cut from end to end on the pipe, just cut a groove out of it,

 

[tweeta_bear]

ok oll try it

 

[tweeta_bear]

I see you put a damping mat in the header, but it looks like it's "backwards." The water should flow under the mat, not over it and the mat should be able to lay flat on the bottom. Yours is curled because the flair is angled.

if i run the water under the flap do i feed my material under the mat too or do i feed it after the mat?

 

[Stanislaus Gold]

you feed under the flap, the flap is in place to "push" the material down , and to level off the water flow.

 

[Jason in Enid]

Since this is basically a "cleanup" sluice I don't think it matters very much as long as you are feeding onto the slickplate.

 

[Stanislaus Gold]

yeah for a sample box its cool,
for a clean up box,you would want to loose the riffles, and run expanded metal over carpet ,and black ribbed mat for a couple foot

 

[tweeta_bear]

not sure of temenolgy but im gonna do my clean up in a pan. of if i get the money one of those blue wheels.

 

[tweeta_bear]

i know i had my sluice box set up right on the stream because when i cleaned out the sluice to pan i had 90% black sand and i didnt have to sluff off very much blonde sand.

 

[Jason in Enid]

not sure of temenolgy but im gonna do my clean up in a pan. of if i get the money one of those blue wheels.

He's talking about the purpose of the sluice. Running riffles is generally considered to be for concentrating dug material. Running a sluice with just ribbed mat or small expanded over carpet is for "cleaning up" the concentrates you get from running riffles (which give you super-cons to finally pan out).

 

[tweeta_bear]

oh so i switch it and it will get ride of the black sand?

 

[Jason in Enid]

Maybe some, but it's mainly to get rid of the light stuff. Getting rid of the black sand is what the finishing pan is for.

 

[tweeta_bear]

He's talking about the purpose of the sluice. Running riffles is generally considered to be for concentrating dug material. Running a sluice with just ribbed mat or small expanded over carpet is for "cleaning up" the concentrates you get from running riffles (which give you super-cons to finally pan out).

thats what i thought... my sluice has all of that in it. riffles, expanded metal and green carpet. is there another way to set it up?

 

[tweeta_bear]

well 2200gph isnt enuff flow.

 

[camocreek]

Pick up a power sluice header box that's designed for this situation. They're like $70. It'll save you a lot of time and frustration. I'm using the same 2200gph pump and the same size sluice (Jobe 45) and it works great.

 

[tweeta_bear]

well here is a vid of it working... plz watch and tell me what you think.

 

[russau]

it appears that you need to screen this material finer. the sides are loading up on you ,like theres not nough water flow.