You will need
  • - scuba;
  • - the gas analyzer;
  • petrol compressor;
  • an electric compressor.
To fill the scuba on your own in that case, if you know how to work with compressor equipment. Otherwise, contact the fire service, rescue service or a diving club, a place where seasoned breathing apparatus. Specialist in refilling of cylinders for a fee to fill scuba purified air.
When you are fully underwater equipment and feel the confidence that alone can fill the tank, buy air compressor for filling cylinders. It is expensive, but if you dive a large company and often run by diving, then clubbing the cost of the compressor will be acceptable.
If you go under the water in places where there is no nearby electricity, you'll like the compact gasoline compressor. Make sure that the device is necessarily equipped with a filter for air.
Get a portable electric compressor for filling scuba from the mains. The choice of compressors is quite large and specialists will help you choose the one that will suit your tank.
Before you fill the tank, check the rubber diaphragm and valves. All items must be intact, without cracks and chafing. Check air hoses, valve springs, clips and fixings. In the case of detection of faults, replace worn parts.
Connect the proper scuba gear to the compressor, set the pressure which will stand the cylinder. Start the compressor and open the valve. For filling of scuba with a volume of 14 liters would require about 10 minutes. Seal off the air after driving the cylinder and switch off the compressor.
After you fill the tank, be sure to check the air quality with a gas analyzer. In the presence of impurities will release the air and repeat the process of driving the cylinder.