Rich,

I appreciate that you seem to be an expert on filtering theory even
though you also seem to lack the practical experience of actually using
the TP or PT depth filters we're talking about. I realize you don't
think they work. Even so, I'd love to hear your expert opinion
(absolutely no sarcasm intened) on why my Racor 2uM filter has lasted so
long (2 years now and still not clogged) after installing a TP prefilter
when I completely clogged two of the same filters in 20 minutes each
before installing the TP prefilter.

Steve