I'll apologize if this is something overly obvious or has been mentioned already, but I haven't noticed this trick elsewhere, so I'll post it here just in case. I remember reading that someone was trying to find spray bottles that wouldn't fail quickly from exposure to reclaiming chemicals. We were having the same problem, by buying spray bottles from the hardware store, putting chemical in them, and then having the spray head crap out shortly thereafter. So, I bought a fresh set of cheapo bottles, one for stripper, one for de-haze, one for ink degradent. Instead of putting chemical in them, I put a few inches of water in the bottom of each. When I want to use the chemical, I take the head off the water bottle and put it on the chemical bottle itself, and spray away. When I'm done, I unscrew it, spray a couple times until the hose on the spray head is empty, then screw it back onto the water bottle. Then a few more squirts to clear any remaining chemical out and draw clean water into the head. Haven't needed to buy any more spray bottles since. Hope that helps another rookie like us!
