Holdmybeer is correct. I have the G6, which has 2 pumps per bag. All three in the picture do connect to the bag. The higher one in the center is for the bag fill sensor/overflow. There is not a lot of room for play to allow the connections to slide around. So if the connected bag lost it's water weight and was pushed and pulled around by the full bag you put on top of it, I could see where one of your connections probably did pull loose. If it cracked the connector, instead of pulling loose a clamp, you can order replacements. Hopefully, you don't have a major problem.

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