Ran the main and closed loop pumps for about an hour or two. I had to adjust the standpipe height (i.e. make it taller) to eliminate the sounds of niagra falls in my overflow boxes. That was easy. Good news is : All pvc fittings & connections are dry. Bad News : one of the darn bulkheads on one of the closed loop returns (bottom glass) is leaking. Tried tightening it up, but it appears the leak is where it connects via cement to the pvc. So, I will need to drain the tank & take out the existing bulkhead ; then replace it with a new one / re-plumb the line.
Other than that, all good. I will get it fixed. Dry Rock is supposed to be getting delivered tomorrow. May need to pull a few all nighters if I want to get her goin by weeks end.