2 scuba divers in gear sitting on entry deck of boat

Do Scuba Tanks Float?

Steel scuba tanks do not float, they always are negatively buoyant. Aluminum scuba tanks sink when full but can float when empty due to losing the weight of the compressed air. When referring to how and why scuba tanks float, it all relates to buoyancy. Scuba tanks are one of the essential pieces of equipment…

Storm over ocean at sunset
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Affects of Wind, Current, and Weather on Underwater Visibility?

Wind and currents reduce underwater visibility by creating turbulence that chops up the surface, reducing the light penetrating the water. Also, currents can stir sand and silt within the water, resulting in a blurry mix. Sudden storms can do this very quickly, affecting safety. Being able to see while underwater is incredibly important for anyone…

Scuba tanks need to be inspected regularly by law and for safety

Are Scuba Tanks Heavy?

A scuba tank typically weighs anywhere from 26 to 40 pounds out of the water. Aluminum tanks are heavier, while steel tanks are lighter. Regardless of material, a scuba tank should feel mostly weightless while you’re underwater. How heavy a scuba tank feels, and how difficult it is to wear it, depends on a lot…

Why do Scuba Divers Ascend Slowly?

Why do Scuba Divers Ascend Slowly?

Scuba divers ascend slowly because ascending too quickly can cause serious injury or death. Slow ascents decrease the risk of decompression illness by allowing the body to eliminate excess nitrogen. Rapid ascents may also cause lung rupture with collapse (pneumothorax) and reverse ear squeeze. Scuba diving is a popular activity that is appealing to many, it…