Be careful. Remember you will be creating Hydrogen at the top of the tube. You'll see it fizz like soda as soon as you turn on the power.
Make sure your connections are secured and given a coat of rtv or the fumes will eat the connection an possible cause an explosion if they spark.
The more power, the more Hydrogen produced. Fortunately Hydrogen is extremely fast moving, and will dissipate rapidly as long as you don't put a cap on it.
Also, you want to keep the size of the tubes small enough to retrieve your finished scrap. Or allow the bottom to be opened when finished. I'm concerned tubes that size when filled with fluid might snap from the weight.
If you need any help let me know. It really took me about 3 rigs constructions before I had the kinks worked out.
Tips:
making trays to lower the scrap in and out without having to dump the column is very helpful.
Put a plastic rod inside the tube, before you fill it with scrap. You'll want to be able to give the contents a little stir every now and then and if you don't stick the rod in before the scrap, it becomes nearly impossible to wiggle it down afterwords.
You could place a Teflon stir magnet in the bottom and use a neodymium mag from a hard drive to drag it around from the out side. Similar to a aquarium cleaning magnet.
Some plastics are softened and partially dissolved in the solution. I found some older plug connectors the grey, and brown ones turned to mush.
Let us know how the reaction is progressing, good luck.
