RO/DI pressure gauge problem

[anirbas91]

I just changed my filter, carbon, and DI resin today. I was trying to let it run for a little while before I added the water to my bucket. I noticed that my pressure gauge wasn't reading. I've watched a few videos talking about there possibly being a clog in the line? Not sure I'd that is the problem. I attached a few pictures. I have the water running and you can see that the water pressure isn't reading. This is a 6 stage BRS ro/di. If you look at the last picture where the DI resin is there is barely any water.
What could be my problem? Would a bad Membrane cause there to be a lack of pressure?

 

[EeyoreIsMySpiritAnimal]

Where is your gauge?
Did you flush the system, and did you close the flush valve afterward?

 

[anirbas91]

Where is your gauge?
Did you flush the system, and did you close the flush valve afterward?

I did try flushing it first. I've never had an issue when I've changed things out before. I attached a few more images.