Quote Originally Posted by parrothd View Post
How does an aerator pump work with a center bag and connected IBS? Can it drain both bags flat? My guess is you need separate fill/empty pumps for the IBS... Just asking not sure..

I have a forth reversible pump that I use to fill under the cooler seat or to fill an extra bag. My longest fill time is my center/IBS, 10-15 minutes but we rarely change it, usually fill it and forget it for the day. We sometimes have a long run back to the slip so I suck the bags completely dry, probably doesn't save anything but helps me justify running 3000+ of ballast..
My understanding is that aerator pumps don't generate enough pressure to piggyback bags.

That's another reason I'm going to just have the big 1180 gravity bag in my XLV.