I got rid of my tank...just too cumbersome..And carrying it..."not to mention 2 on a sailboat? and my boat 40 Ft.//what are my benefits...a 30 minute dive...?...and then I got to fill em..So I'm back to a dive shop where I can rent and refill.
Which leads me to what I have..I copied the rig of one of the divers in a marina I stayed in..who bottom cleans boats...
Went to home depot bought for 100 bucks a Husky easy air to go small compressor...weighs about 15 lbs...small in line filter 8 bucks "easy stowage" Went to my Dive shop..had them fabricate the fittings on high pressure air hose..50 ft...I would probably get a larger hose..attach my 2nd stage regulator
...plug the compressor to electrical
outlet....35 PSI on regulator
...and have all the air I want...Use my generator
..even my inverter
at sea...My range of course is limited..But if I need to dive under boat or at ancorage I have the capability..and don't have to worry about tanks.
Nothing new just an inexpensive hooka rig that works well..
Not convincing the die-hard set on a tank ...I would take a good look on tank rack set ups on dive boats..and fabricate a wall rack...putting it in a door..This way easy to mount..Tank secure and away from elements.
Finding a good secure place for an air tank on sailboat is like employing a bull in a china