If I doubt use your standard pump to run a swirl pot and a .44 to run from there. You need to ensure around 4psi min at the swirl pot. For mine I run a pressure switch in the swirl pot mounted to a big light on the dashboard. If the swirl ppt runs below 4psi the light comes on telling me to shut down. With 1.5 Litres in the swirl pot this gives you plenty of time and warns of a failing lift pump. Obviously doesn't warn if the .44 goes, but every little helps.