Quote: (Originally Posted by
MarcLaukien)

Watertrap
The HH CCR has a much larger watertrap than the Optima. On the other hand, the Optima's watertrap has the advantage that it works in any dive position, while for the HH CCR, you have to stay in a slightly heads up position, or put something into the watertrap (bottom of the canister) that absorbs water.
-- Marc
Marc,
Thanks for the thorough write up! How much water trap space would you estimate is in the bottom of the can with the radial scrubber?