Haven't registered Yet? Register Now. Already a user? Ticking this option will unlock the 'My Dive Shop' area for you. There you will be able to claim or create a business entity.
Coronavirus: Divers find Philippine reef covered with single-use face masks
Scuba Singles Dating - The Best Place to Meetup with Scuba/Snorkeling Singles
The history of scuba diving is closely linked with the history of scuba equipment. By the turn of the twentieth century, two basic architectures for underwater breathing apparatus had been pioneered; open-circuit surface supplied equipment where the diver's exhaled gas is vented directly into the water, and closed-circuit breathing apparatus where the diver's carbon dioxide is filtered from the exhaled breathing gas, which is then recirculated, and more gas added to replenish the oxygen content. Closed circuit equipment was more easily adapted to scuba in the absence of reliable, portable, and economical high pressure gas storage vessels. By the mid-twentieth century, high pressure cylinders were available and two systems for scuba had emerged: open-circuit scuba where the diver's exhaled breath is vented directly into the water, and closed-circuit scuba where the carbon dioxide is removed from the diver's exhaled breath which has oxygen added and is recirculated. Oxygen rebreathers are severely depth limited due to oxygen toxicity risk, which increases with depth, and the available systems for mixed gas rebreathers were fairly bulky and designed for use with diving helmets. In the U.
Top 5 Scuba Diving Magazines
Original shipping charges are not refunded. We will only cover return shipping if we are notified prior to return. We'll arrange return of your item and bring you another size - without additional shipping costs. Return item as used: Did you already use the product but still want to return it? We allow many qualifying items to be returned even if used, up to days of date of invoice for full credit.
Sign in. Log into your account. Password recovery. Forgot your password? Get help.