How to calculate the ratio between Hydrochloric acid to Hydrogen peroxide?

[Topher_osAUrus]

To keep spinning on GSP's post, a thick walled rigid tube can be filled with quartz pebbles. It is unaffected by the leach and keeps the tube on the bottom. Though, I would put in a few drainage holes at the end so any copper chloride that leaked in could easily be drained when harvesting the gold foils.

Göran

Only issue could be (possibly) flakes settling in to the holes of the tubes and/or in the pebbles.

I have a couple 3.5 gallon buckets where i drilled the holes in the bottom and 2 inches up the side walls, and took aquarium tube that I had sealed and poked holes in, then ran in a spiral from center out.

It worked good, but i hated rinsing the flakes off. Now i just used an end-sealed tube with holes that is put in first, with all the fingers/scrap on top to hold it down.

Sometimes, i like less, more.