What I have found works best for me is to store my oil in 55 gallon drums and when ready to make fuel I use a barrel pump to transfer into an open top container (larger the better for ease of time) where I then add any additional elements depending on current temperature. I use a submersible 1/6hp water pump to then cycle the mixture through a 10 micron waterblock spin on filter for a enough thime to let the entire volume to go through this filter several times. I then change the filter to a 3 micron spin on and again let it cycle and then pump into truck. The reason for cycling is the more passes the closer you will get to stated rating of the filter, multiple passes will get you near 100% of the filter rating. The reason for one filter at a time is simply flow. At first I had three in line, and in theory this seemed like a great idea, I had a bowl filter, spin on 10 micron waterblock, and standard 10 micron filter that I let cycle before I would pump through 3 micron into truck. The reality though is when I had more than one and had any kind of resistance in the filters I would get no flow (the 2 horse team is much stronger than 2 individual horses effect). Good luck and stay clean. Also, try to stay off the bottom, and if you let the oil sit you will save on your filters.