Hello all!

I was wondering what is the best 1 stage pressure for Meg 2.7?
Mine is sett now to 8.5 for oxygen and 10 for diluent.
But since I changed swagelock with normal O2 feed (regulator 2 stage) I almost don't hear when solenoid is firing. with swagelock it was louder.. I'm afraid that with more pressure in 1 stage, solenoid will eat up more the battery, what I would really like to avoid..

Best regards Max