Quick question about water separator

 Hi all, I just emptied the clear bowl under the fuel/water separator for the first time using the little twist nozzle at the bottom, caught the fuel had a look all good no water. But when i tightened the little drain nozzle back closed and then pumped the fuel bulb which got hard and full no fuel goes back into the bowl. The fuel bulb has been installed between the separator and motor .  How come fuel water separtaor doesnt refill when i pump the bulb. Should i run the motor and then pump the bulb to get fuel flow?. I wanna go out tomorrow so need help on this please  cheers dave

Faulkner Family's picture

Posts: 16797

Date Joined: 11/03/08

 Have you tried starting it

Sat, 2021-08-14 18:28

 Have you tried starting it to see if the glass bowl fills up while it's running. 


RUSS and SANDY. A family that fishes together stays together

Posts: 633

Date Joined: 22/08/12

I keep it in storage on a property with no water

Sat, 2021-08-14 18:46

 access otherwise yes i would have started it to see if it would suck fuel through while i prime the bulb. Will do that at mindarie marina tomorrow morning hopefully it works wanna go fishing its been way too long since i was out cheers  

Posts: 107

Date Joined: 30/06/20

 Try pre fill it with fuel 

Sat, 2021-08-14 22:17

 Try pre fill it with fuel 


 More of a fisherman than a catcherman

Rob H's picture

Posts: 5334

Date Joined: 18/01/12

 The fuel bulb got hard

Sun, 2021-08-15 05:41

 The fuel bulb got hard because there was nowhere for the fuel to go at the engine.

As said you "should" see it fill up pretty quick once started, but watch it, the VST should get rid of the air as long as it runs long enough.

The bulb is better off being between tank and filter so you can bleed the air off the top of the filter but most boats don't have a convenient location for it.


 Give a man a mask, and he'll show you his true face...



The older you get the more you realize that no one has a f++king clue what they're doing.

Everyone's just winging it.


Posts: 56

Date Joined: 28/02/15

it will refill

Thu, 2021-08-26 16:14

 take it for run,i thought same.