Maplenoll and its various advisors, Lloyd Walker, Pierre Sprey, recommend putting all doodads close to the pump followed by 500 feet of hose as final smoothing of pulses, resonances and turbulance caused by juncture points, etc.. They use a fuel filter on the input of the pump with one or two plenums after it, followed by a carbon filled water filter followed by the splitter and control valve for the platter and arm. I've added two small water/oil traps, one right after the pump for the oil and one several feet of hose downstream to allow for further condensation as it cools. You can make plenums and water traps with 6" PVC pipe and, end caps and screw in nipples. Fill the plenum with polyester fiber fill.
