And by the way, this is not to rag on Ron, I'm just trying to get some
information.

I cut my tank apart on a '91 Carat at 133,000 miles, which could have
already had a replacement tank.

I still have the pictures that I took of the results; the tube inside the
tank leading to the right side rear was lower than the left side rear
(return side), but absolutely no screen cartridge installed.

Can anyone shed some light on this?

Thanks,

Dave