X-Star fly high help

A buddy of mine has an x-star with the fly high plumbed in. Every sack fills and empties properly except the starboard rear. It will fill fine but getting it to empty is a pain. Somebody usually has to sit back there and fudge with it for 10 minutes before that sack alone is empty. The stock starboard rear tank empties like a dream which leads me to believe its not an impeller issue. Takes so long we have just stopped using the fly high sacks. Any ideas?

mine did this, the hose was kinked so i just replaced it

Don't they all have their own pump and impeller? However I believe that the same pump is used to fill and empty so I guess you would have an issue filling as well. The kinked hose sounds like a good place to start.

I believe the bags overflow from the stock tanks to fill but I'm not quite sure about emptying. I believe it's just 3 pumps that fill and empty it all.

What year is it?

It's an 08 40th anniversary

I think the best way to do it is get the 3 way distribution valves from wakemakers, flyhigh makes them and there 119.99 a piece buy allowes u to have total control of the tank and sac. Right now it sounds like the sacs just gravity feed back into the tank to empty.

I think those are installed. When the stock is full switch three valves then it flows into the fly high. Is this what your talking about?

The pump isn't timing out is it? (flashing red led on the switch)... If so, the pump might be sucking air and the computer senses a current change and shuts the pump off. Huge pain in the arse dealing with the Timers. Not sure if this is what's happening.