FWIW when you get to the bottom of the liquid reactor and you still have a bunch of solid on the bottom, you can refill with fresh RODI, shake and your good to go again. It may not be as strong as before, so you may need to add more than you were adding before to maintain levels.
As far as BA goes. In BC, at least, they are the worst. Poor service, high prices, unknowledgeable staff and on many a ocaasion, verry rude. Why bother going there to try to get them to price match. It's not worth the hassle. There are plenty of stores in BC and on the net, that beat them in every way, IMHO
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