Two meter troll wrote:

IME the fuel polishing only works for stuff suspendid in normal
conditions; I have never seen a tank that didnt have stuff in the
bottom that only got into the filters in really bad conditions.
As you say. Me I like redundancy when I can get it.

You have to remember that the polishing pump is drawing at 20 - 30 times the
rate of the normal fuel pump. That makes it much more effective at sucking
stuff up out of the bottom of the tank. With my retrofitted system, both
engine and polishing flow are drawn through the same suction. I actually
can't draw a tank quite as low with the polishing system running as I can
with just the engine drawing because it sucks air down about an inch and
into the intake.

--
Roger Long