Rebreather World - View Single Post - Chemistry and Physics in sealed part-used scrubbers

Ben Field · 19th September 2007, 11:03

Quote: (Originally Posted by Molecular Products Ltd)

It is not safe to keep part used soda lime for reuse for more than a few hours in your rebreather if it is to be again. This is because the water balance will start to redistribute and will adversely effect performance.

Hi, Any chance you could further quantify that?

I only ask as everyone I've ever met leaves partially used lime in their unit between dives, 2-3hours on a day, overnight on weekends and even 1-2weeks between short trips. Most often the unit is sealed after a brief hose and lung emptying/cleaning/drying period of less than an hour.

thanks,

19th September 2007, 11:03	#7 (permalink)
Ben Field CK+Shearwater Current Rebreather/s: Classic Kiss Other Rebreather/s: Sport Kiss Join Date: Aug 2005 Location: London, England Posts: 1,635	Re: Chemistry and Physics in sealed part-used scrubbers Quote: (Originally Posted by Molecular Products Ltd) It is not safe to keep part used soda lime for reuse for more than a few hours in your rebreather if it is to be again. This is because the water balance will start to redistribute and will adversely effect performance. Hi, Any chance you could further quantify that? I only ask as everyone I've ever met leaves partially used lime in their unit between dives, 2-3hours on a day, overnight on weekends and even 1-2weeks between short trips. Most often the unit is sealed after a brief hose and lung emptying/cleaning/drying period of less than an hour. thanks, __________________ Know your PPO2, Pre-breath, Use checklists, Validate cells at 6mtrs, Use pure O2 at or near surface, Use a BOV, Don't dive Solo, Change Slime and Cells as recommended by Manufacturer and RTFM! Beware Fridge Suck! www.hugsac.org.uk
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