I chose the Racor 900MA filter for my polishing filter housing. I also installed a drag needle vacuum gauge to monitor filter performance. The system is designed to run whenever the engine is running and turns the entire contents of the tank twice each hour. I also installed a switch so it can run independently of the engine or not run when the engine is on.



The recirculation pump I initially chose was a Carter rotary vane pump. This pump failed in less than two years. It appears the technician I spoke with mislead me on what defines their pump as able to run "continuously".


There are plenty of less expensive industrial filter housings and spun filters you can use that will work equally as well. Don't feel you need to spend big bucks on a Racor. For me I prefer the Racor, as I know them in-side and out, and I know Hamilton Marine has a massive stock of any part I would ever need for it.