Turn the handle on the tank, to supply the regulator and gauges with air pressure. The gauges are pointed away from the body to avoid injury if the gauge were to malfunction. Listen for any leaks, and read the gauge and make sure that it is some what close to the pressure that was put in to the tank. Last you need to inflate the B.C.,and purge the regulator to make sure that they work properly. The gear is now ready to be used.
Scuba gear is very affordable.
There are many other setups you can purchase for around the same amount, and more. I found Divers unlimited to have the best over all prices. There are many places to get certified in scuba diving, but there are also many things to consider. It also includes 4 ocean dives. It consist of 9 hours of class room study and 9 hours of pool time.