New to me Wazer set up

Recent buy of a used wazer seemingly in good condition. I have a couple questions about the attached pic of the media hopper feed tube and device is questionable to me. Should there be a second tube attached to this “T”? (circled in blue)

After making all of the plumbing connections and running through the system checking the functionality of the individual components I ran a cleaning cycle/ When the cycle ended, the “T” connected to the media hopper spat out a few ounces of water (circled in red)

After running the wazer should the pressure be released from the pump/high pressure hose?
Thanks

Hi Swamphox, welcome to the forum and thank you for giving this WAZER another chance to make some cuts!

From your picture we can see you have the older style Abrasive system installed still, an upgrade was made a few years back to switch over to a much simpler and more reliable version. Check it out below:

We can send you all the parts needed for this upgrade, send us an email at support@wazer.com so we can get that process started!