LMAO!!!
Well, the tank DOES IN FACT hold water.
HUGE sigh of relief since this is the first time that I've seen it WITH water in it.
As I suspected though, 43g isn't enough to run the CL with. I have another barrel mixing now so later tonight I'll pump it into the tank and that should be enough to run the CL. I'll sweet talk Patti into helping me figure out how to video tape it so you can see the flow. It looked pretty good for a few seconds until the pump started sucking air.