elmer fudd
Contributor
I won an E-bay auction the other day that I didn't expect to and today I received a round label DA Aqua Master.
It was pretty dirty, so I washed it up and damned if it didn't come out looking surprisingly good. Next I put it on a tank and took a few breaths out of it. It inhaled nice, but exhaling was very difficult. I opened it up at this point and discovered the duck bill had bonded to itself and the inside of the reg. Fortunately I had a spare.
Now one thing I noticed while I was inside it was that the can with the label on it had the holes cut in it for a square label's tabs. Interesting. I opened up my RAM, (different reg), to see if it was the same, but it didn't have the same holes.
Now I'm wondering if perhaps this might have been a slightly earlier reg that had the square label replaced with a round one in an attempt to make it look more modern.
It's a shiny chrome reg, serial #109802, with the tire knob on the yoke.
My other question is completely unrelated, but one thing I have always heard is that you don't want to run the old regs at too high of a pressure because it's hard on the seats. But what about with a balanced regulator? Seems to me that with a balanced regulator the pressure on the seats should be the same regardless of the pressure in the tank. It may be done to normalize the work of breathing, but it seems to me that an added benefit would be that it would also eliminate many of the problems associated with high pressure tanks.
It was pretty dirty, so I washed it up and damned if it didn't come out looking surprisingly good. Next I put it on a tank and took a few breaths out of it. It inhaled nice, but exhaling was very difficult. I opened it up at this point and discovered the duck bill had bonded to itself and the inside of the reg. Fortunately I had a spare.
Now one thing I noticed while I was inside it was that the can with the label on it had the holes cut in it for a square label's tabs. Interesting. I opened up my RAM, (different reg), to see if it was the same, but it didn't have the same holes.
Now I'm wondering if perhaps this might have been a slightly earlier reg that had the square label replaced with a round one in an attempt to make it look more modern.
It's a shiny chrome reg, serial #109802, with the tire knob on the yoke.
My other question is completely unrelated, but one thing I have always heard is that you don't want to run the old regs at too high of a pressure because it's hard on the seats. But what about with a balanced regulator? Seems to me that with a balanced regulator the pressure on the seats should be the same regardless of the pressure in the tank. It may be done to normalize the work of breathing, but it seems to me that an added benefit would be that it would also eliminate many of the problems associated with high pressure tanks.