SlugLife
Contributor
I had to look it up, and apparently my above quoted numbers were incorrect. I went from 5lbs to 20lbs. So 15lbs difference. I still felt very slightly bouyant (1-2 lbs) at the end of the dive.Everything else the same? If so, that sounds like a much larger swing from fresh to salt than I would expect.
This might make sense if the freshwater dives are warm water with steel tanks and the saltwater dives are in a wetsuit and AL tank. Otherwise, the 18-19 lb addition sounds like more than should be needed just to account for the difference in salinity.
Approximate Additional Weight for Salt Water?
Standard Disclaimer: Everyone should do the standard weight-checks, and adjust their weight according to their buoyancy at the beginning and end of a dive. It occurs to me I have no idea how much additional lead I'll need for diving in salt-water. I'll know the answer to my question in a few...
scubaboard.com
Factors were likely: Thicker wetsuit (7mm vs 5mm), being very cold, and unfamiliar environment. Almost all of my equipment was the same (I only rented tanks & weights), except downgrading my redundant air from 19cu to 6cu.