Two identical fuel filters in PARALLEL for better flow...
Just a suggestion regarding extra filtration/water removal without upsetting the many ECU's that get stroppy over flow-rates etc...
Back in the Dark Ages when it was sort-of legal to make Backyard Biodiesel, I put two CAV-type filters in PARALLEL on my Other 4WD.
The idea was that the fuel had a choice... flow rate through EACH would be halved, so there was less pressure to push the tiny boulders through and most importantly, more TIME for the glycerin to drop out.
Worked well with water-removal when I changed to fully washed bio-D
Cheers,
James