realdiver7
Contributor
I just bought 2 PST 100 c.f. tanks about 3 months ago, but have only had them filled about 4 times. I always keep air in them at all times. Today I did a visual inspection because I'm going to use them for Nitrox, since they have been approved for Nitrox.
During my inspection, I noticed some very light surface rust around the sides at the very bottom, and around the inside near the valve, with other light surface rust spots throughout. Both tanks are always stored inside in environmentally controlled conditions.
When I rinse them after each dive, I leave off the DIN dust cap and rinse inside the DIN part of the valve. Before I use the tanks, I turn the air on for a split second to clear any water from the valve before I connect my first stage. I dive in salt water 99% of the time.
1. Is this light surface rust normal?
2. Do I need to do anything else before using Nitrox, given that the tanks have been cleaned for Nitrox and I have only used them for a short while, with air fills being from a reputable dealer?
3. Can I still use regular air on occasion, or do I have to dedicate the tank for Nitrox?
4. Should I use a different method to clean the salt from the valves?
Any advice would be greatly appreciated.
Thanks!
During my inspection, I noticed some very light surface rust around the sides at the very bottom, and around the inside near the valve, with other light surface rust spots throughout. Both tanks are always stored inside in environmentally controlled conditions.
When I rinse them after each dive, I leave off the DIN dust cap and rinse inside the DIN part of the valve. Before I use the tanks, I turn the air on for a split second to clear any water from the valve before I connect my first stage. I dive in salt water 99% of the time.
1. Is this light surface rust normal?
2. Do I need to do anything else before using Nitrox, given that the tanks have been cleaned for Nitrox and I have only used them for a short while, with air fills being from a reputable dealer?
3. Can I still use regular air on occasion, or do I have to dedicate the tank for Nitrox?
4. Should I use a different method to clean the salt from the valves?
Any advice would be greatly appreciated.
Thanks!