Penny's Father gave me an open check and said get us a system. I went with products that I had seen when I worked at Chevron. Fill-rite (artic) 12v pump at 18 gpm that is mounted on top of the skid mounted tank. We went with the 12v for the reason that we are off grid and I really didn't want to fire up the Gen-set every time we wanted to pump the fuel. On both the fuel tanks (Diesel sits outside the shop) and the DEF tank (that sits inside the shop) the pumps are top mounted on the tanks. The DEF is covered to keep it from going bad ( we were told sunlight makes it go bad)
On Our Tractors there is a 12v aux plug that I put a * CANT SCREW THIS UP PLUG ON!!* Same on the other end that is connected to the pumps, just plug in the corresponding pump and have at it. If I were to do it again I would have went a Hand Crank Pump on the DEF we don't use that much of it and although its nice to have an automatic pump, what's the big deal in turning a handle to keep warm in the winter for the few gallons of DEF that is added.
Filters I went with Fill-rites (this time) one is a 30 mic at 20Gpm the other is a 10mic at 20Gpm with some gauges to tell when they are getting close to being changed. The DEF I went with a single 7 mic filter. The tractors themselves have on a Cat 2mic filter (Thank You Filter Yoda

) plus the normal filter/water sep that came on them from the factory. My Pard that's a Wrench at the Case IH dealer said that I'm way over filtered but what can it hurt?
Water separator on the Diesel only was handled by Racor, I'm kind of surprised that we don't get more moisture than we do with the tank sitting outside. I did build a covering over it don't know if maybe that helps or not?
So far both the systems (our place and Sons) have had no problems, I think that maybe the price was a little high but everything was NEW, I didn't have to piece things together and I know want size the tanks actually are with the tank charts that came with it, EPA even gets down to the % amount that can be put in the tank noting over 75% although I have put in 90% and knew that we were going to use the equipment a lot, and it was clean when we got it and it stays clean.
The only complaint has been from Penny she's the one that uses the Diesel Tractor around here the most. She said the pump is a little slow. I tell Her to shut the tractor cab door, then its warm!!

I pump just about all the fuel for Her ANYWAY!!