Took the boat out yesterday for the first time this season, started filling the right side ballast bag up, once filled i switched to the left side. After a while I noticed the right side starting to bilge looked under the locker and it the right side bag looked like it was going to burst. Looked in the left locker and the bag was empty and dry.

Determined that the left bag was somehow filling up the right bag. I couldn't get the left bag to get any water.

Any ideas?
08 mobius lsv