Hello,
This is what I normally do if my regs have been setting unused for some time or whenever I change out any of the LP or HP hoses
just set up the regulator on a tank, pressurize the system and listen for air escaping, test the purge and breath off each second stage
then I take a spry bottle with soapy water and spray the first and second stages as well as along the hoses. If I should see any bubbles from escaped air
then I'll take it in to the LDS.
If there are no problems then on my next dive I'll be more observe of any changes in my regs performance before, during, and after the dive
I hoped that helped
Cheers
This is what I normally do if my regs have been setting unused for some time or whenever I change out any of the LP or HP hoses
just set up the regulator on a tank, pressurize the system and listen for air escaping, test the purge and breath off each second stage
then I take a spry bottle with soapy water and spray the first and second stages as well as along the hoses. If I should see any bubbles from escaped air
then I'll take it in to the LDS.
If there are no problems then on my next dive I'll be more observe of any changes in my regs performance before, during, and after the dive
I hoped that helped
Cheers