DiveSub40

18/05/2026

Please join us in congratulating Calum Sherriff & Charlie Kruger on passing their Technical Diving International JJ-CCR 45m trimix (Helitrox) course at Vobster Quay Inland Diving Centre today! Both have stepped up from the Air diluent 30m course they both completed with us well over a year ago and getting the necessary hours experience on their rebreathers since.

It’s been a busy few and very long days in and and out of the water with revision on a lot of topics and skills whilst learning new ones along the way too, such as the effects, hazards & benefits of diving with helium & getting to dive it in their rebreathers whilst executing a meaty decompression schedule. Bailouts followed by open circuit gas switches whilst following a decompression schedule with an SMB deployed and buddy breathing a deco gas are amongst the most complex skills they had to perform and did a sterling job, fair play!

They’ve both now firmly made the transition from recreational diving into the technical diving world & are now both Technical Rebreather Divers!! 👏 👏

Massive congratulations both, thoroughly well deserved, great work - Be proud of your achievements! ✊😎

23/04/2026

Huge congratulations to Connor Otteson on making the grade today on his TDI 45m Trimix Helitrox decompression qualification dive with 85 minutes in the water, he now joins the few divers who earn the right to be called Technical Divers. No mean feat at the age of 20, your hard work & steadfast dedication has paid off over the last several weeks, well done! 👏 👏 👏

13/04/2026

08/04/2026

Huge congratulations to Vissa who successfully completed his TDI JJ-CCR Rebreathers 45m Helitrox course at Vobster Quay Inland Diving Centre.

Already an OC Normoxic trimix diver and JJ-CCR air diluent diver, he’s not been technical diving for around eight years and then it was in the Far East & not in a drysuit. So first, we had a day of single tank diving to complete his Dive RAID International Drysuit course before the technical package commenced.

Lots of refreshing on all matter of technical dive theory from the subject of diving with helium, gradient factors, gas calculations to gas density; it was a steep learning curve for him both in and out of the water. UK technical diving is certainly somewhat different to warmer climes in a wetsuit.

Well worked and thoroughly well deserved Vissa, you should be justifiably proud of your achievements, great stuff!!! 👏

It’s been an absolute pleasure working with you, welcome to the UK technical diving scene & I hope to dive with you again and soon!
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