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Abbo · 2nd July 2007, 05:51

With the clear plexigrass sides to the standard Meg scrubber you can see very clearly how much of the scrubber has been used. Recently, I've been going away for weekends with 2.5 litre tanks and one shot of sorb. With the fairly sawtooth profiles I've had to make that O2 has been the limiting factor. After 5 one-hour dives the O2 is pretty much out but less than 20% of the scrubber has changed colour. The water temperature drops to 16 degrees C below about 30m or so, but is 20 degrees at deco depths. IF I trusted the colour change on the sorb, doubtless I could squeeze a few more hours out of the sorb. The trouble, as I see it, with hypercapnia is that you may get zero advance warning, and the effect is like having your batteries pulled out: you suddenly become incapable of self-rescue. 'Too cheap to live' would be a pretty sad epitaph: EVEN MY WIFE would agree my life is worth more than a fill of sorb! Don't screw with it: it's not worth it!

2nd July 2007, 05:51	#4 (permalink)
Abbo Nicholas Smith Current Rebreather/s: Megalodon Other Rebreather/s: Join Date: Aug 2006 Location: Tokyo Posts: 449	Re: Meg Scrubber Life. With the clear plexigrass sides to the standard Meg scrubber you can see very clearly how much of the scrubber has been used. Recently, I've been going away for weekends with 2.5 litre tanks and one shot of sorb. With the fairly sawtooth profiles I've had to make that O2 has been the limiting factor. After 5 one-hour dives the O2 is pretty much out but less than 20% of the scrubber has changed colour. The water temperature drops to 16 degrees C below about 30m or so, but is 20 degrees at deco depths. IF I trusted the colour change on the sorb, doubtless I could squeeze a few more hours out of the sorb. The trouble, as I see it, with hypercapnia is that you may get zero advance warning, and the effect is like having your batteries pulled out: you suddenly become incapable of self-rescue. 'Too cheap to live' would be a pretty sad epitaph: EVEN MY WIFE would agree my life is worth more than a fill of sorb! Don't screw with it: it's not worth it!
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