Update: I have gone through a major revamp of my Scuba Force SF2 these past few weeks. I cleaned and rebuilt everything. I even had the new
Scuba Force USA factory service center in Lake City Florida go through the head, check all the cables and install new O2 sensors. While I had it apart, I went ahead and made a few alterations to the workings. Most of these have been thought about for the past few years of diving this unit and from conversations I've had with SF2 instructors, users and some insights from a few other users. Having this facility on THIS side of the pond is awesome. It doesn't suck that I only live 25 minutes away, either. They have the factory training and parts to make any repair you might need on your SF2.
First: I rebuilt the regulators for the Dil, O2 and ADV. Very simple designs, but alas, when I reassembled the Dil reg, it had a slight IP creep. I re-replaced the o-rings for the hi pressure seat as well as the seat itself to no avail. I then polished the seating cone with an mechanical eraser. Still no joy. Upon inspection with a 10x eye loop, I can see the imperfection in the cone. It appears that the chrome has flaked off just a tad, so there's no way to make it smooth. Maybe some jeweler's rouge and some aggressive polishing, but I would always worry about it. I replaced it with a HOG first stage, which means I have to change the hose going to the ADV. I set both regs to be a bout a bar less than my bail out regs (130psi) so the bail outs will be the primary source of gas when connected.
Second: I eliminated my Dil MAV. You really don't need one when you have a BOV and it really simplified hose routing. I went with one longer hose for the O2 MAV rather than two hoses, and tee. I'll still be running hoses off of the Dil reg to my BCD, an offboard QD6 and my regulator in the BOV. As I pointed out earlier, I have set the Dil Reg to be a bar lower, so when I am plugged in, I'll be pulling from the offboard source. My intent is to plug in to the offboard source so I don't have to remember to turn the inboard Dil off and on.
Third: I eliminated the O2 solenoid Quick Disconnect. I did this after a discussion with Ted McCoy where he described an event which mirrored one that I had had. Without a QD, when you turn on the O2, you'll quickly pick up that the hose is still disconnected. I guess putting the QD running in the opposite direction would do the same thing, but this will be easy enough. I'm replacing the hose with one two inches longer to make up for the missing QD.
Fourth: This was a minor change, but I am going with covers for my SPGs. Green for the O2 and black for the Dil. I use 1.5" bicycle inner tube loops to tame my hoses over my shoulders. Those were "OK" when I was running two MAVs, but with the elimination of the Dil MAV (left chest), I need to add a bolt snap, which these facilitate, and I have also thought of a way to bungee the O2 to the O2 MAV, so that I never have to fumble with it. I'll post some pics in the following post!
