Ok, In the image (below) is the setup I have inherited on my boat. I first observed the system with all 3 valves open. Instructions on the boat say "open 2 & 3" or "open 1". I currently have only "1" open because the mechanic
suggested that the pump should not have to or would not like to pull fuel
through two filters.
I have read that (and mechanic
suggested) that the plumbing
should allow one or the other filter so they can be switch while the engine
is running. So the questions are...
1: Is it ok to go through two filters and then switch to only the second one when the first is dirty?
2: Should I re-plumb to be able to toggle between filters? (so I can switch filters while the engine
3: Is there something in the current
setup that I'm missing? (because the owner (few owners back) who did most of the work on this boat seemed to know a lot and did a lot of nice mods)
4: Is there another way altogether in your opinion?
thank you much,