RAW Rapid Converting a HM1000X to tethered

Pic of the tank. @bdzjlz

SCBA 30 min tank.jpg
 
I have an HM1000X and a 30 minute SCBA tank. What are the pieces parts I need to run it tethered? What options/configurations are there?

Thanks!
As already suggested, get an external regulator but I would do this. Remove the two o rings on the guns reg core (this will stop the reg working so you will get full bottle pressure. With your tether connected, use the external reg to optimise your guns velocity ( let’s say 135bar) now replace the two o rings on the original reg and set that to 135bar.
Now turn up the external reg to say 200bar, with or without the tether the gun should shoot at your set velocity.

Bb