At 05:28 PM 1/1/2012, you wrote: >Question: Has any or everyone else did or had to do this max flow test? ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
I was not requested or required to perform the test but I did it on my own. My Facet pumps deliver 30 gallon per hour, 500 percent of the required flow. Also, because I have wing tanks only and no gravity feed, I checked the vertical draw the pumps handle too in order to prime the lines from empty tanks. I stopped the test at 30 inches. That seemed sufficient. I had intended to use a check valve on each pump as they are plumbed in parallel but a test I ran indicated that to be unnecessary. I hooked two pumps head to head and was unable to pump fuel backwards through either pump. I've got 430 hours on the same pumps I started with. Do not take these results as an indication of how your system will work, each one is different, and do all your own testing. Larry Flesner
