Stock bag set up help.

[MJO21]

I have a 2013 Z3. My starboard rear bag does not fill. I can hear the pump running. It was recommended to me on this site to pull the hose off and try to suck water through to get a possible air bubble out.

Which hose should I disconnect? Is it the hose right on top of the bag?

Or something on the bottom?

Is there colors or anything that I can get in there and work with?

[MJO21]

Fixed it. Just took the prop of the pump off and put it back on and the bag filled right up.