My setup just needs the 1 lone camel pack on my back to work. I step on the pressure plate, my pack goes into a chest with water bottles in it and some extra empty slots too, then it crafts into a full camel pack, puts it back on my chest armor slot, empty bottles land in the same chest. Then the next set of code crafts empty bottles with dirt from a jabba barrel and drops dirty waters back into the same chest, then one at a time sends the dirty water to a furnace to be smelted into regular water which lands in the same chest, and keeps repeating until all the dirty water is gone. The furnace I just have a jabba barrel full of sticks with a hopper feeding the side of the furnace. I could switch it out for a powered furnace but I went with the most simplest setup that you can do as soon as you get access to SFM stuff in the early-mid portion of the game. The dirt jabba barrel is connected to ex nihilo oak barrels that compost dirt from a jabba barrel of leaves so I have a full jabba barrel of dirt always available to be made into dirty water.