1st-Relief offers the solution against unwanted "well-back", powered by Perko Inc and ShipShapeTV

1st-Relief presents the “In-Hose” Inlet Check - Flapper Valve (ICV) to reduce or eliminate a reverse flow of fuel (well back and spit back) from the fuel tank to the fuel fill via the fill hose.
These check valves have been designed for use with plastic or metal tanks. The Inlet Check valve is designed to reduce or eliminate a reverse flow of fuel (well back and spit back).

[@SaltyGringo247]

glad i saw this, now i know what to remove on my Majek. checked the vent and all was good. it seems my flap is not working as it should and not allowing me to fast fill the boat.

[@beaniril8870]

the problem is the fuel air vent. If the fuel air vent is clear then there will be no "well back or spit back". if the fuel air vent is clogged or closed then there's not enough air pressure to push fuel into the motor, it will stall on idle or while cruising. Fuel air vent prevents the tank from a vacuum state, not an absolute vacuum state but enough to prevent fuel into the motor.

[@josesantana561]

What if it’s coming from the vent line? I’ve checked both main and vent line and still does this.

[@execct]

Has anyone added one of these? The diameter looks too small for my fill hose which I believe is 1.75"

[@amgeezy_2709]

Looks like it backed up because he blocked the vent. Then if the valves shuts don’t you still spill the gas you’re pouring?

[@1st-relief]

Closing the valve prevents the gasoline from shooting out. Of course, if you open the tap further, the gasoline will overflow, but the uncontrolled "splash back" was prevented. And installation and price are really convincing arguments in comparison to the success of the measure. Greetings 1st-Relief www.1st-relief.com/en/perko-in-hose-inlet-check-valve-icv.html

[@grubbin7950]

Hi

[@SuperBirdman23]

Sounds like it might cause other issues

[@Honda1k]

Like what?