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Just breath the loop till you get a fuzzy head after powering it down :p:p:p:p:p

my dive shop doesnt stock any mix, its all blended whilst you wait, usually slow too. If they had a bank of pre mixed gas i would probably use that to save time / faff

I don't have standard gasses.......... I have a set of rules based on the loop density, dil flush, END, mod rules - I have several Diluent in the shed and if i want to go diving i see what I've got vs what I need. I tend to get a heavy mix of around 15/50, then air top it after a days diving...

a valid point

does the prism have 2 mushroom valves? for them both to fail to the extend of co2 build up seems very unlikely.

Letting the scrubber dry out ? why? You know sorb needs moisture to work correctly ? Have a read of the simon mitchel paper on reusing sorb

I wouldnt see it as an issue, if it was me I would personally grab a competant CCR buddy and do a controlled drills and skills session to familiarise myself with the new lungs

Not through help via BSAC, they hung him to dry

Didnt help that BSAC chap in malta

Ive done sept and oct, both trips around 11-13 degrees, drysuit

Drop Mark Culwick a message, hes the Xccr guy in the area I think, maybe have a day refresher or something

The bsac find a club tool, if you click advanced, can select a club with CCR divers

What unit? I am on a AP, regularly dive with a bunch of lads at vobster if that's close enough for you Im guessing step 1 would be to go through the unit, cells, pos, neg etc etc and make sure your super happy diving the thing.

Sounds like a week in scapa is what you need :)

Phoenix watersports have moved from vivian I think, theres been multiple posts about their reliability. You would be best off asking the NWTD lot, they have a FB group and whatsapp group.

Happens frequently and its annoying, particularly when your in a pic on ccr - the people without bubbles....... and there's bubbles coming out of my mask! Only cure for me is to squish the mask against my face to create a vacuum. However any time I adjust the loop volume I need to redo this process

I think I saw that list........ wasnt it full of crap with suggestions like adding fans to the loop to make WOB easier?

AP are self service, the manufacturer provide step by step servicing guides with pics. I think being able to self service is handy, it helps you to learn the unit and helps you keep it running if away from a shop on a trip.

Asthmatic here...….. UK diver, signed off by UKDMC Dived open circuit and now currently a MOD 2 CCR diver. Have a google on heliox treatment for asthmatics, my lungs are the best ever at a nice depth on a good helium mix :) There is easy to access guidance on spirometry tests online. Get...

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