kitting up!!!

[Mr fish]

I agree, take your time and do your usual prep at your comfortable pace. I always suck through the ADV before I go, after jumping in with the ADV shut shortly after MOD1 and getting into a bit of a flap.

Once I sucked and sucked and couldn't set-it off, turns out I had opened the head to change batteries and the end of a cable tie got in the gap when closing and stopped it sealing. I saved myself a full loop flood and was in the water 10 minutes later. A Neg after I closed the loop would have picked that up so I learned a valuable lesson from that too. If you compromise a passed test, re-test.

i could be on 10/50 so id not want to be sucking on the adv to much , im more your green buttom man till im past 6m , even if im on say 18/what ever im still on the green button ,, (ADV on or off) is a past 6m problem for me ,, well its not a problem if truth be told is it ,, its errr do i slide and suck or push and breath mmmmm what to do what to do ,,

 

[Mark Chase]

I check it all at home during asembly.

On the boat i limit it to:

• Neg check (5 seconds tops)
  
• All gas on check the SPGs listen for leeks
  
• Turn on HUD and check 0.21
  
• Put unit on, Switch on hand set and see if it aquires 0.7
  
• Check ADV works
  
• Check BOV works
  
• Manualy inject to 98%+02
  
• Check HUD agrees with display
  
• Pre breath unit whilst waiting to get in and checking hand set all the time.

Thats it.

I'd NEVER calibrate over the previous evenings claibration. If its out theres a reasion for that that goes beyound calibration and id probably can the dive or decide if i can dive round a limited cell.

I can not imagin any safe working practice for diving a rebreather that requires any less in terms of predive checks. Theres probably more you could add but i am happy with my version.

 

[matt]

I agree, take your time and do your usual prep at your comfortable pace. I always suck through the ADV before I go, after jumping in with the ADV shut shortly after MOD1 and getting into a bit of a flap.

Me too. Same reason. When the handset says "check dil" I do the OC test - mouthpiece in, pick-up the SPG, 2 breaths through the ADV.

If you compromise a passed test, re-test.

Fully agree. I see people lift the head off, change a battery or cell, push it back on and jump in. Gives me the heebeegeebees, I'd either sit it out or go in late (and cut the run).

Matt.

 

[Iain3]

i could be on 10/50 so id not want to be sucking on the adv to much , im more your green buttom man till im past 6m , even if im on say 18/what ever im still on the green button ,, (ADV on or off) is a past 6m problem for me ,, well its not a problem if truth be told is it ,, its errr do i slide and suck or push and breath mmmmm what to do what to do ,,

I suck the loop negative (ccr is on so loop is at 0.7) until I hear the ADV firing, if it does I am happy, if it doesn't I investigate, so no more risk of passing out than when testing the BOV. I'm happy to take a breath or two of hypoxic dil between normal breaths. I enjoy the squeaky voice for one thing.

 

[tufty]

Cell check, cyl contents check and neg test day before (usually) neg check on loading on boat. Full predive checks 30 mins before dive (or there abouts) it works for me