Drain pipe sluice

This is a 100x50mm PVC down pipe sluice, electric pump and river. It's very light and effective so far in my tests. I'm using black rubber matting and I made some riffles out
Of PVC pipe that just push in and can be turned to give more angle.
The pump is a 700 gph and the battery is a small 7amp sealed lead acid.

This is a connection fitting that scoops in the water nicely.

That's neat mate well done!

That looks fantastic. It must be really light too. Thank for the pics.

Excellent idea

Very interesting concept! I can't quite see how the riffles work but I can imagine its super light and perfect for recirculation

Great job. I like the riffle concept.. do they clog with gravel?

Nice work, light as too. Great for a bit of a hike to hidden spots... Let us know how you go with it.

Cheers
Waz

Hi guys, an update on down pipe sluice.
Iv Been screening the material from crevices with the 1/4 inch screen before running in though and find it does not clog up. Of course you have to feed it at a steady rate, which is a lot easer than panning.
I found that after 3 buckets the riffles are full of black sand and it needs to be tailed out for the rough gold in the gully I'm working floats on the sand when panning!
The battery has gone flat after some work and I think it needs replacing for its years old and would be the heaviest item to be carried. I think I would go up to an 11amp one.