Fuel / Water Separator in the bilge area?

[Moses]

For my Sea Hunt, I had to get an after market one installed. They did this in between the rear batteries and bildge area.

[Van]

It should be easy to access. The bildge seems like an odd spot.
Also it should be higher than the tank so you dont get lots of fuel leaking when you replace it. Worst is when you have to replace it at sea, so consider that too.