2 things to consider on fuel polishing:
1GPH will accomplish next to nothing. My polisher is around 150 GPH and will theoretically turn the tank over in 2 hours, not days.
Fuel polishing is only modestly effective when the boat isn't moving. In a perfect world you want the fuel to be agitated (stirred up) with the the contaminants free floating (not sitting on the bottom of the tank). This allows them to be sucked out and filtered out. 4' beam seas does a very good job.
I'm tired of fast moves, I've got a slow groove, on my mind.....
I want to spend some time, Not come and go in a heated rush.....
by The Pointer Sisters