This design is a hidden tank filler for both the fuel and water tanks from Stuff & Additions. Its best to craft an extra tank or two to leave in the system so you don't have to wait for your empty tanks to fill and can instead grab full ones ready to go. The design is a little convoluted as normal filtering with Create cannot determine between a full tank and not, so backpacks with filters are used instead. The glass in the schematic is simply your floor layer, and the copycat panels and andesite casing are simply to contain the water and lava and can be whatever block of your choice. I cannot seem to add descriptions to my images properly however the filters shown are from left to right in the backpack image. The filters do not show up in the schematic and will need to be put in and configured manually. The amount in the tank shown in the images matters for the filters, so look carefully. Power is supplied from below at any RPM but 256 is ideal for speedier tank filling times. Lava needs to be pumped in on the lava side from some sort of lava supply. The design is fairly compact and is a huge quality of life improvement.