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[Nicole]

Just a tip. If BC substrate gets wet, chuck it out.
I find that you can tell what is clean and what is not by looking at the BC. If it has been wet, even just a litttle, it swells and starts to fall apart. Even if some of it has been wet and is then dried out before I get home, I can still see where an unclean spot on the floor is and I can then clean that spot up between full clean outs.

Also if in a larger enclosufre, try newspaper under your layer of BC. It is easier to lift the paper and wrap all the BC in it when cleaning.