Checked on it just as it was hitting right up under the bottom frame board and found that the primary bulkhead was leaking. Evidently, it got backed off enough to leak after the last test. I attempted to hand tighten it and it wouldn't budge any more.Drained the tank down to the bulkheads and will work on tightening it up tomorrow. I'm also going to pick up one of those 2" roll out hoses to replace the 2" pvc plumbing out the door. Should prevent this from happening again.
The other 3 bulkheads didn't have any problems because only this one has the pipe connected to it moved. Minor setback, but we'll be moving forward tomorrow. I'll probably end up making my own 2" bulkhead nut wrench out of a 1x4 since I don't want to put metal tools on the plastic nut. I don't know of a tool that I could buy that meets my criteria. I do remember seeing plastic wrenches for use on household water purifiers that might do the trick, but not sure of the size.
Anyone have suggestions? I know the tool I'm looking for has to exist. I can't be the first person who wants to tighten a 2" bulkhead nut without damaging the plastic.