Todd, If the filter is clogged, of course shouldn't attribute the fault to the CAT, but the filter has low restrictions less than 4 PSI under 9.9V with Jersey filler pump, still wouldn't attribute the fault to the CAT.
The only theory that I could come up with is debris clogging port during filling, and I offered a different plumbing method to avoid this, which could apply to any UAT. And this scenario may or may not apply to the failure either. If anyone comes up with other possibilities let me know.
We are only reporting what we find, and making recommendations, it's all.
Good Luck!
Barry