location of outflow KGB check valve on 2005 X-45

[jemaresh]

Does anyone know where to find the outflow check valve for the KGB bag on a 2005 X-45? I replaced the port and starboard tank valves near the manifold next to the transom both of which would not seal and those tanks now fill and empty well, but the KGB won't fill or empty. I'm sure this check valve is bad as well but I can't locate it to replace it.

Ant thoughts??

[Skyskiguy]

If it has a manifold system I believe you only have the 2 check valves as all three tanks drain through the manifold and out the sides through the two lines with the check valves. No?

[jemaresh]

Makes sense but shouldn't there be a check valve on the overflow hose from the KGB so no air is sucked in when trying to fill all the tanks?

[Skyskiguy]

Makes sense but shouldn't there be a check valve on the overflow hose from the KGB so no air is sucked in when trying to fill all the tanks?

Doesn’t the KGB fill from the manifold as well? Vent/overflow lines in a manifold set up shouldn’t need check valves - only the intake and outflow hoses need them. But I’m not familiar with the setup in your specific boat.