I have install the lubrication fuel filter in a pre OEM setup for additional filtration. I have noticed that every couple of weeks the fuel system loses prime and I have to 'pump' the filter to get the truck started. Appreciate feedback on if this is a normal occurance or do I need to go looking for a pin hole leak. Visual inspection shows nothing. The fuel lines are soft, as expected, since I have no fuel lift pump. Is that the answer, do I need a fuel lift pump?

Thanks in advance for any help.