Flush port becoming loose is there a tightening nut on back?

[DanH216]

When I put in hose/quick connector into port for flushing its start to show looseness, hard to see back of unit, I guess I can unscrew the four screws and look, was wonder does anyone know how it tightens? Thank you!

 

[JJF]

Do you mean the remote flush port? If so, yes. You may need to be a pretzel to reach it, though.

 

[DanH216]

Yes the flush port, ok just haven't found a picture of it not installed so I can get an idea how the center is locked down