Murdoc I have one in the boat and on the motor. It don't cost all that much but it will sure save you some money if you get loaded up on water in the fuel. The cost of the filters or seperators is nothing compared to the cost of a rebuild or a new block.
I wouldn't run a boat motor with todays fuel without one. Ethnoil in the fuel makes it drag water to it and without the seperator you will have it inside that engine.
Murdock, the seperators are marked with in and out on the fuel lines. I have my bulb after the fuel goes thru the seperator. You can buy a very nice one at wallyworld, you will have to buy the fittings and hose elsewhere. On my 4 stroke you never need to pump the fuel bulb.
