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Frequent CCR divers, what do you do between dives?

Discussion in 'Rebreather Diving' started by doctormike, Jun 14, 2021.

Frequent divers - what do you do to clean your CCR between dives (apart from sorb dump question)

  1. Complete disassembly, freshwater rinse, sterilize loop

    18 vote(s)
    38.3%
  2. Complete disassembly, freshwater rinse

    7 vote(s)
    14.9%
  3. Leave assembled, freshwater rinse, sterilize loop

    8 vote(s)
    17.0%
  4. Leave assembled, freshwater rinse

    4 vote(s)
    8.5%
  5. Something else (specify)

    10 vote(s)
    21.3%
  1. KentB

    KentB Contributor

    # of Dives: 200 - 499
    Location: Rather be under water
    346
    188
    I normally just dive 1x week so i fully clean ,sterilize and dry.
    scrubber into dry bags

    if I’m diving day after day (rare) I’ll sterilize when I’m done or every 4-5 days with daily rinse and dry and lots and lots of clean water through the loop.
     
    sunnyboy likes this.
  2. Capt Jim Wyatt

    Capt Jim Wyatt Hanging at the 10 Foot Stop Staff Member ScubaBoard Business Sponsor

    # of Dives: 5,000 - ∞
    Location: High Springs - Cave Country
    2,883
    2,155
    If between dives is more than 24 hours. I disassemble completely and flush with steramine. I let it drip dry then bring it inside my house in the A/C - I have a small fan that I place to blow the components dry overnight. Then I stow it disassembled in my dive locker which is in the AC and completely dark.

    I use this procedure now on my Choptima, I used the procedure on my rEvo and my Optima.
     
    mikesz, rjack321 and Heat Miser like this.
  3. TTPaws

    TTPaws Contributor

    # of Dives: 1,000 - 2,499
    Location: St. Croix, USVI
    316
    86
    On my APD EVP with the Silent Diving travel kit, it really depends on where I'm at and the time between dives. If I'm in St Croix I dive every day, I'll do a really good fresh water rinse (including the CLs) and take everything except apart. Even the scrubber head comes off so it will dry. But I only use steramine once a week. Everything gets torn apart and steramined AND dried before I travel.
     
    rjack321 likes this.
  4. ofg-1

    ofg-1 Contributor

    502
    1,243
    Between dives, they all sit back and ponder what they would be worth if, instead of a box of death, they had bought Bitcoin when it was $400 per coin.
     
    TTPaws likes this.
  5. mikesz

    mikesz Registered

    # of Dives: 200 - 499
    Location: Melbourne
    41
    14
    How do you store a partially used scrubber until next time you want to dive it?
     
  6. davehicks

    davehicks ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Seattle
    794
    746
    I don't touch the canisters and store it in the sealed unit. I'll let the hoses dry out for a day or so and reseal the unit. I'll keep it at least a few weeks between dives before dumping it. I am ok to run my unit's scrubber for 4 hours. If I only have 1 hour on the scrubber I'll used it for two more dive in a in single day. If I have two hours on the scrubber already I'll only use it for a single additional dive. I will always dump spent scrubber if I've already dove it on two separate days regardless of run time.
     
    mikesz likes this.
  7. macado

    macado Scuba Instructor

    # of Dives: 1,000 - 2,499
    Location: Salem, MA (North of Boston)
    1,320
    806
    Scrubber gets put in a dry bag on work bench. I write date and mark hours used on scrubber. Unit stays open so that it can dry out.

    There was a study not that long ago about storing partially used scrubbers. (I'm sure someone will post a link) but you could technically just leave the scrubber out on the counter unsealed if it were just overnight, there is really no harm or significant lose of CO2 absorption capacity. If left it unsealed for ~30 days it looses efficiency. I always just put my scrubber in a sealed dry bag.

    About a month is how long I would go. After that I would chuck it the trash but in theory as long as it's sealed and stored in suitable conditions it's probably good for much longer. I really wouldnt have any hesitation using older partially used scrubbers if they had very little hours/time on them.

    EDIT: Study here: Storage of partly used closed-circuit rebreather carbon dioxide absorbent canisters
     
  8. Capt Jim Wyatt

    Capt Jim Wyatt Hanging at the 10 Foot Stop Staff Member ScubaBoard Business Sponsor

    # of Dives: 5,000 - ∞
    Location: High Springs - Cave Country
    2,883
    2,155
    Me too. I also use the stack timer with my Shearwater Petrel 2 to track usage.
     
    mikesz and TTPaws like this.
  9. mikesz

    mikesz Registered

    # of Dives: 200 - 499
    Location: Melbourne
    41
    14
    Perfect. That’s exactly what I do as well. I use a vacuum bag for the scrubber and then put into a weather sealed storage box. That way I protect the scrubber and moisture content in the sofnolime.
     

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