Mike:

On my KC, I had the same problem with the Sullivan 16oz Boat tank that BVM ships with the kit........my solution was to switch to a Sullivan 16oz Round(cylindrical) tank........this contour resists deforming.........zero problems with my Jersey at 7.2 volts since the change.....I can actually run 12 volts across the pump and the center tank doesn't swell significantly, either filling or emptying........it just fits between the 2 main tanks when pushed all the way back against the aft bulkhead.......

I have had similar bloating problems with other tanks in series/parallel on my Avonds F-15, AD F-16, SJ F-16, all solved by going to the round tank setup.........I still get a little bloating in my UAT......

Actually, a little bloating is not all that bad since it allows one to check for leaks before heading out on a sortie......


Tom