VAN said:
My acid formed crystals overnight and so then I just added and added till it fizzed duh I should start over and go slower.
You're experiencing what happens when you try to work without the aid of supplemental heat. Chemical reactions always work faster with temperature, plus you get much better use from the acids involved.
If you're trying to dissolve base metals without heating the solutions, it will be a long, hard process. It will work, just not as fast, and certainly not as well. The crystals you spoke of will go back into solution upon heating and adding a little water. It's normal for them to grow from saturated solutions as they cool.
I realize I've harped on things quite a bit, but the things I have to say are exactly the things you're going to have to come to terms with if you intend to refine, or extract, precious metals.
I started out in a garage, working under a window with a fan pushing fumes outside. It was better than nothing, but not by much. You simply must have a place to handle acids safely, or consider your hobby one that is restricted to the warm months alone. You can keep it relatively simple, but it's almost impossible to work without a hood of sorts, and a heat source to assist in the reactions. It may look overwhelming at first, but you build the needed things one at a time-----and let the profits from refining pay the bill. Worked for me.
Harold