To feel comfortable in it, 10 dives is not uncommon. To have the same trim and control as a wetsuit, ~30 dives. After 50 dive, you should dive it better than the wetsuit!
I was surprised too, so I contacted Nuvair (last year) and asked some questions and they confirmed what I observed. It is a small amount of contaminated gas, but is contaminated. Ray, you have access to many systems, next time you find one that has been shut down for ~2 weeks, sample the gas...
One other possible source of CO is the filter stack itself. Under normal running circumstances, it will still pull out the normal amount of CO in the air. After a few hours of run time, the filter stack itself will contain a significant amount of CO. If the system is not used for some amount...
Another source of CO is the filter stack itself. This source is very small and only happens under the right circumstances. Here is my experience. I have a 7 cuft/min electric compressor. The filter (LF) is rated for 20 hours @ 70F. This measurement was taken with ~11 hours on the filter...
I will keep my RB (upfront cost are steep). My gas bill from this past weekend trip to San Clemente Island for both dives. Dive 1 was USS Hopewell (370'), dive 2 was USS Burns (270').
Dill: 10/68. Used 13 cuft, cost: $0.60 cuft = $7.60
O2: Used 13 cuft, cost $0.15 cuft = 1.95
Sorb: $30...
Going deep is normally to see wrecks. Deep wrecks have fewer visitors and are for the most part untouched by man. This past weekend, we dove the deep wrecks of San Clemente Island - Lots of fun for those willing to venture!
Some things to consider:
1) If just doing one dive per day, a wetsuit is fine. If doing three, such as being on a Catalina dive boat, a drysuit is the way to go.
2) A drysuit opens up the entire year to diving.
3) When switching to a drysuit, it will take ~10 dives to get it under control. ~40...
One quick note, once you pass the no deco time, coming up slowly does not really help. Need to get to first deco stop depth while not exceeding the 30'/min limit. It's the pressure gradient at the deco stop that does the off-gassing.
Scubadude_LA,
How are you going to use it? In a whip, part of a panel? If it's a whip, I would just buy one pre setup with a Sherwood valve or you can build your own.
Here is the valve I would buy :High Pressure Inline Valve 1/4" male - 1/4" female 6000 PSI Max" Valves & Regulators
If...
Scubadude_LA,
I understand the GUE concept of He and 32% to get the standard mixes (21/35, 18/45, 15/55). If you have O2 and He, why top off with 40%?
Thanks
Go try V-Planner, I have been using it for years. The trick to accurate mixes is a digital gauge and waiting for the gas temperature to come back to equilibrium and rechecking the pressure before moving to the next gas. V-Planner VPM & VPM-B & VPMB & VPM-B/E dive decompression software...
The irony in this thread is that the tank does not matter as much as the valve, but I never hear "Is your valve O2 clean". The real kicker was when I was diving at the Catalina dive park and they said they could not fill my tank with air because it was nitrox ready. Over the years, I just got...
I have had it since early 2006. It has ~300 dives on it, but no dives in the last 5 years. It has the original Stainless Steel inflator - never had any problems with it, just clean it every 6 months. No inflator hose. Condition: Good. $150 Prefer local sale (Orange County, CA)
I think there needs to be an skill qualifier for this discussion.
If your a new diver or don't dive much and have no plans to incur decompression. The weight (part or all) should be ditch-able.
If your a tech diver, the weight belt goes under the harness (ditching weight takes effort) as a...
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