Basking Ridge Diver
Contributor
So this is one off and I could not find a thread that was similar.
Started looking at the some of the more popular DIY sites on how to create Nitrox. My question to me is straight forward but I am sure the answers coming back will be - so here goes...
I am trying to understand why in Pseudo Partial Pressure Blending - "SCUBA tanks and fill system need to be Oxygen Clean Certified".
It makes sense to me why the tank needs to be Oxygen Clean - you will be filling directly from the O2 to the Scuba Tank - slowly and cleanly.
What I don't understand is why the compressor or fill station if it is pumping Grade E air after the O2 has been transferred but is not O2 Clean is required... Is there a resource or a simple explanation for why the fill system to be O2 Clean?
So I am clear I am suggesting two separate steps - one to fill the scuba tank with O2 and the second step to top off the scuba tanks with air.
I am asking because I have access to a fire house compressor and 6 6000psi Cascade Air bottles - 3 banks of 2 bottles each. I know they are not "O2" clean but they produce Grade E air for our needs at the fire house.
I am thinking I could rent a cylinder of Industrial O2 - partially fill the scuba tanks with an O2 clean Whip and ensure the tanks are O2 clean. But then I would like to top the tanks off with the compressed air at the firehouse.
Obviously I don't want to make rookie mistakes and get hurt in the process. Can you point me to a source or give me an idea of - No this is crazy because the O2 will cause an explosion by not being O2 Clean with the fill system... If I rented a mix of less than 100% would that be better or "safer"?
Any comments or suggestions would be most welcome.
Started looking at the some of the more popular DIY sites on how to create Nitrox. My question to me is straight forward but I am sure the answers coming back will be - so here goes...
I am trying to understand why in Pseudo Partial Pressure Blending - "SCUBA tanks and fill system need to be Oxygen Clean Certified".
It makes sense to me why the tank needs to be Oxygen Clean - you will be filling directly from the O2 to the Scuba Tank - slowly and cleanly.
What I don't understand is why the compressor or fill station if it is pumping Grade E air after the O2 has been transferred but is not O2 Clean is required... Is there a resource or a simple explanation for why the fill system to be O2 Clean?
So I am clear I am suggesting two separate steps - one to fill the scuba tank with O2 and the second step to top off the scuba tanks with air.
I am asking because I have access to a fire house compressor and 6 6000psi Cascade Air bottles - 3 banks of 2 bottles each. I know they are not "O2" clean but they produce Grade E air for our needs at the fire house.
I am thinking I could rent a cylinder of Industrial O2 - partially fill the scuba tanks with an O2 clean Whip and ensure the tanks are O2 clean. But then I would like to top the tanks off with the compressed air at the firehouse.
Obviously I don't want to make rookie mistakes and get hurt in the process. Can you point me to a source or give me an idea of - No this is crazy because the O2 will cause an explosion by not being O2 Clean with the fill system... If I rented a mix of less than 100% would that be better or "safer"?
Any comments or suggestions would be most welcome.