I would see, once all is said and done if a mod could stitch the different threads together. Make it one entire subject, kinda like a book with different chapters.
I'll have a number of questions as you go along. I have a few now, but I'll wait till you cover it first.
The bio-ball Q threw me a bit as well, but think it may have to do with floats that you see on some of the RBC rigs holding it up and in place.
I have a bunch of brand new bio-balls here if someone is interested. I think maybe about 6000 of one size and a couple thousand of another size. Had a couple cases of 2" degassing balls that I was going to mix in the smaller balls with for a degassing column, but NOT! Haven't seen them for at least 7 years. Must have grown legs.
