bought this unit in addition to big 8-piece unit so I could have extra tank for my son to dive. Hand pump takes over an hour to fill to 3000psi to get 4 minutes dive time at 30 feet in ocean. Maybe a pro athlete could get this time to 20 minutes. Be sure to ALWAYS us the oil-water seperator filter when filling tank. Oil and water vapor can kill you when you are diving, so take extra care in this event. Bought a Yong Heng electric compressor. Needs extra equipment for good oil-water seperation. Tank and regulator works well. Go to YouTube and look for "4500psi compressor" to see videos on how to charge tank and how to adjust regulator. Billing from regular Scuba tank is only practical method of filling tank if you do not use electric compressor. Be very carefull with your breathing. When breathing gets hard, come to surface IMMEDIATELY. At most 3-4 breaths during ascent from 30 feet. tjcooper

bought this unit in addition to big 8-piece unit so I could have extra tank for my son to dive. Hand pump takes over an hour to fill to 3000psi to get 4 minutes dive time at 30 feet in ocean. Maybe a pro athlete could get this time to 20 minutes. Be sure to ALWAYS us the oil-water seperator filter when filling tank. Oil and water vapor can kill you when you are diving, so take extra care in this event. Bought a Yong Heng electric compressor. Needs extra equipment for good oil-water seperation. Tank and regulator works well. Go to YouTube and look for "4500psi compressor" to see videos on how to charge tank and how to adjust regulator. Billing from regular Scuba tank is only practical method of filling tank if you do not use electric compressor. Be very carefull with your breathing. When breathing gets hard, come to surface IMMEDIATELY. At most 3-4 breaths during ascent from 30 feet. tjcooper

bought this unit in addition to big 8-piece unit so I could have extra tank for my son to dive. Hand pump takes over an hour to fill to 3000psi to get 4 minutes dive time at 30 feet in ocean. Maybe a pro athlete could get this time to 20 minutes. Be sure to ALWAYS us the oil-water seperator filter when filling tank. Oil and water vapor can kill you when you are diving, so take extra care in this event. Bought a Yong Heng electric compressor. Needs extra equipment for good oil-water seperation. Tank and regulator works well. Go to YouTube and look for "4500psi compressor" to see videos on how to charge tank and how to adjust regulator. Billing from regular Scuba tank is only practical method of filling tank if you do not use electric compressor. Be very carefull with your breathing. When breathing gets hard, come to surface IMMEDIATELY. At most 3-4 breaths during ascent from 30 feet. tjcooper

perfect

perfect

perfect

Great scuba set

Great scuba set

Great scuba set

Usefull for diving, high quality.

Usefull for diving, high quality.

Usefull for diving, high quality.