Originally Posted by Pikey Dave
That's usually due to the orientation. I had problems as the original fuel hose wasn't long enough to orientate the bulb vertically. I lengthened the hose slightly & got the bulb vertical, no problems now. The problem with bulbs is that they only suck (no pun) with the force that the bulb is inclined to return to shape after you've squeezed it. If you have a long run of empty hose between tank & bulb, you have to pull fuel all the way from the tank to the bulb before pushing it downstream to the engine, in effect you are using the bulb as a vacuum pump, which they ain't.
All IMHO of course
Seems like the check valves in the ends are always the first things to fail. Although I have had a barb on the bulb crack once. Wherever it goes it needs to be outside of any closed compartments and away from any electrical connections, batteries, sparks etc.
Originally Posted by jyasaki
Do you really want to force fuel through a clogged filter? I realize it's likely an emergency action, but you'd be putting all the delicate stuff in the motor at risk by forcing it through known contaminant. Better to bypass the clogged filter than risk freeing all the trapped stuff, I'd think.
Not only that but if you're really forcing fuel through the filter I'm guessing the fuel pump on the engine won't be able to suck enough fuel through to stay running anyway.
I'm happy with mine downstream of my transom mounted filter. I wouldn't want that filter any other place as it definitely leaks when changing it.