What do you do when you want to check your first stage ?

Option 1: Send it to GKAM

Option 2:

Step 1: Get the IP test guage from GKAM 🙂
Step 2: Attach it to the low-pressure BC hose

The IP pressure from the first stage of Ray is 10.5 bar. And has a fast response when you breath from the octupus. Looks ok to me….