This unit was used with
supply hose not from a UW cabin (as should originally be) but from surface
in a deep freshwater dam. That is why an adaptor was used (the supply hose
came from surface so it was connected in the upper part of the rebreather).
I have removed the adapter by drilling off the screws (they were covered by
a thick layer of epoxy) and that is why you can see a red tape inside the
frame and white spots (I have not painted the plugs yet) on its outer side.
I use the SMS1 recently as a SCR wearing two 2-7 l bottles in stage
positions with different mixtures (bottom mix and DC mix) with regulators on
each and with the IP (changes a little with depth) from both leading into a
manifold with exchangeable nozzles (I use nozzles from LPG ovens
-0.13...0.32 mm diameter).
In spite of opinions
expressed in the rebreather-conference if possible I use the saver with 1/2
the volume of the original scrubber volume as can be seen in the detailed
picture of the scrubber. As I am a physicist, I can calculate everything I
need including nozzle diameters, dosing, concentrations as well as
decompression (I use ZHL16 + Gradient Factors from Deco-planner).