The Cosmicist
Contributor
Well, there isn’t consensus on this, but I’ll share what I do. My first stages are environmentally sealed, so I don’t see a lot of benefit to soaking the 1st.
I fill a large bucket with water and a bit of Salt Away (if the dive was in saltwater). I attach the reg to a tank and turn it on. 2nd stages soak in the bucket while pressurized. I cycle purge a few times during the soak. While soaking, tanks and 1st stages are rinsed well with the hose. After a good soak, 2nd stages are rinsed, then the tanks are turned off, regs depressurized and removed. The regs hang on the hanger to dry overnight after shaking excess water from the 2nd stages.
That works for me. When I get them serviced, it’s not unusual for the tech to comment on them being clean.
Seems like a reasonable routine if they are environmentally-sealed. What if you don't have any cylinders available to pressurize the hoses? My initial thought would be to put the dust "cap" on (I ordered DIN regs, so they'll have an actual sealed plug) and hang the 1st stage above the 2nd so water can't seep into the 1st.
Where does the first stage fit in this procedure? Do you rinse it at all or you don't rinse and don't soak the first at all?
I believe he rinses them: "While soaking, tanks and 1st stages are rinsed well with the hose."