Okay, I did the search, read the threads, built a great water U-manometer, 1/4 clear tubing, brass barb in old mouthpiece, mounted to board with a ruler, total of 8$ and 15 minutes of time. But still don't understand the readings. All my regs are about 3/4 inch cracking pressure, but that's measured on the vacuum(one) side only. Do you have to double that to have the real cracking pressure or is 3/4 inch all there is?
DYI Manometer Reading?
- Thread starter a878bob
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both, .75" + .75" = 1.5"
from this thread ... http://www.scubaboard.com/forums/do-yourself-diy/229788-building-manometer.html
Yes, just as D_B says. You are measuring the distance between the + and -
1.5 is not terrible but not that good either. If they were serviced by a shop the tech left them that way in order to avoid free flow.
Before you make any adjustments to the second stages, be sure the IP is correct (usually 135 +/- 10 psi
c
1.5 is not terrible but not that good either. If they were serviced by a shop the tech left them that way in order to avoid free flow.
Before you make any adjustments to the second stages, be sure the IP is correct (usually 135 +/- 10 psi
c
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