fill/drain port and vent

[dt37803]

Can anybody tell me should the piggybacked sacks in my gen 2 system vent from the top and fill/drain from the bottom side or visa versa:confused:

[XSTAR40]

Vent from top. Fill from bottom.

[dt37803]

Thanks That's what I suspected, Dealer had them backwards also part of bag was dropping down in a small space beside engine baffle and not able to drain completely