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You are fortunate. Norris has always been one of the more bastardly companies when it comes to scuba tanks.

What were the numbers she came up with?



narwahl:
I just acquired a Norris HP120 that is out of hydro. I was searching the web for buoyancy specs on this tank and came across this thread. I contacted Norris Cylinders and spoke with Sally Mitchell, their Engineering Manager. She sent me a copy of the latest extension for E13483 in case I had any trouble getting a hydro. She also calculated for me the buoyancy characteristics of that tank based on their manufacturing specs.
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