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Hi all fellow DIR divers, In light of many pieces of research published on the disadvantages of deeper stops, what gradient factors are you guys using when you dive outside of courses. I know gue uses a 20/85, what do you guys choose?

High all! I am a predominantly tech 1 warm water diver from asia, due to this, i have never needed to use a weight belt in my diving. The coldest i have dove was 18 degrees and that was manageable with just V weights. I will be going to dive in colder conditions (400 gr undergarment) soon and...

Hi, I am looking to get a 18/45 fill in Hong Kong for a tech 1 exploration dive. However no diveshops stock helium in Hong Kong, i am posting here to ask what purity of helium do i need for scuba fills? Anything i should look out for? Thank you all in advance!