Gravity III Forward Ballast Sac

[Turbinesurgeon]

I have the 1180 bag in my 2006 front locker which isn’t vented from the factory. The bag has a fill and drain port at the rear and one drain up front. My question is can I flip the bag over and use that front drain as a vent? I notice a lot of air in the bag when filling.

[MJHSupra]

That would probably work for filling, but I assume you would create another issue during draining.

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[Turbinesurgeon]

It actually worked. The drain and fill on the back side are the same height. I filled the front bag and it only fills half way because there is no vent. Opened the drain up front and I was able to fill it all the way up. I can’t believe these things weren’t vented at the factory.