R.Chisholm
Registered
Hi,
I own 2 carbon dive 6.8l/300 bar tanks with nautec 300 bar DIN valves which I bought on a whim.
I believe I have so far managed to keep them oxygen clean – and only use them with an atomic aquatics M1 regulator that I also strive to keep oxygen clean.
I have used both tanks individually as a bailout filled with Nitrox 32 while cold water solo diving (usually with a 2x12l twin set as back gas).
I have considered using these tanks for the following:
- Shallow (60ft/20m) sidemount if I ever get round to setting up the gear properly.
- Continue to use them as bailout holding Nitrox 32 for solo diving up to 40m/130 ft.
- Use one for single tank deco diving holding Nitrox 50 for light deco dives
– i.e. up to 15 mins mandatory decompression.
- Fill one with 100% oxygen and keep it for emergency oxygen supply on the surface – possibly with a different constant flow oxygen regulator.
For the sake of this discussion let’s assume I understand the procedures and dangers inherent with high pct high pressure oxygen rich mixtures.
Here is my question to divers that regularly dive using high pct oxygen rich decompression gas.
Is it actually practical to switch the contents of a cylinder every few dives from say Nitrox 32, to Nitrox 50 to 100% oxygen or is the need to relabel the cylinders with a new MOD sticker and ensure that the tanks and regulators really stay oxygen clean (shop banked Nitrox w/o personal filter anyone?) just too much hassle all round?
Regards,
Rory
I own 2 carbon dive 6.8l/300 bar tanks with nautec 300 bar DIN valves which I bought on a whim.
I believe I have so far managed to keep them oxygen clean – and only use them with an atomic aquatics M1 regulator that I also strive to keep oxygen clean.
I have used both tanks individually as a bailout filled with Nitrox 32 while cold water solo diving (usually with a 2x12l twin set as back gas).
I have considered using these tanks for the following:
- Shallow (60ft/20m) sidemount if I ever get round to setting up the gear properly.
- Continue to use them as bailout holding Nitrox 32 for solo diving up to 40m/130 ft.
- Use one for single tank deco diving holding Nitrox 50 for light deco dives
– i.e. up to 15 mins mandatory decompression.
- Fill one with 100% oxygen and keep it for emergency oxygen supply on the surface – possibly with a different constant flow oxygen regulator.
For the sake of this discussion let’s assume I understand the procedures and dangers inherent with high pct high pressure oxygen rich mixtures.
Here is my question to divers that regularly dive using high pct oxygen rich decompression gas.
Is it actually practical to switch the contents of a cylinder every few dives from say Nitrox 32, to Nitrox 50 to 100% oxygen or is the need to relabel the cylinders with a new MOD sticker and ensure that the tanks and regulators really stay oxygen clean (shop banked Nitrox w/o personal filter anyone?) just too much hassle all round?
Regards,
Rory