Why are scuba tanks filled in water

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Why Are Scuba Tanks Filled In Water? (7 Key Questions Answered On Air Fills)

By Russell BowyerPosted in Learn to Scuba Dive, Scuba Diving Tips & SafetyTagged Why are scuba tanks filled in waterNo Comments

The reason why scuba tanks are filled in cold water is that a warm dive tank holds less air at a given pressure than a cool scuba tank does at the same pressure. This means that as the air inside the tank cools, the pressure of the air will decrease. Therefore by controlling the temperature of the dive tank during the filling process will increase the amount of air available when the tank is used on the next dive.

I’m the diver behind Scuba Diving Earth. My first dive was on the Great Barrier Reef in 1989 and since then I’ve dived hundreds of times around the world. I’m a BSAC Dive Leader, have been a BSAC diver trainer and the Diving Officer of a Saffron Walden BSAC Club. I live in the UK near to the New Forest in Hampshire with my lovely wife Jo. I enjoy scuba diving around the world, but now mostly in the warm tropical waters of the Caribbean. I have a love of diving where I can see sharks. My favourite so far was seeing Whale Sharks on the Ningaloo Reef in Australia.

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