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overexposed2X:Getting my Nitrox cert shortly and need to buy a pair of tanks. Should I go with HP's or LP's?
NWGratefulDiver:Personal preference, really.
If you're partial pressure blending, LP's tend to be easier to get an accurate mix, since there's less heating occurring as you complete the latter part of the (air) fill.
... Bob (Grateful Diver)
overexposed2X:I have a main regulator setup as well as backup that the first stages are both MK25's DIN rigged. I may have solved the issue though on what I need to get for tanks. My new boat has a 4 tank rack that is mounted to the back of the standing bolster. Each holder measures 7.5" ID. Looks like I'm constrained to using HP's if I want to use this rack.
jjsteffen:Find a scuba shop that fills to 3500 PSI for HP fills and I will find ten that can only fill to 3000.
jjsteffen:Personal Preference??? Who are you kidding. Find a scuba shop that fills to 3500 PSI for HP fills and I will find ten that can only fill to 3000. Save your money and buy steel LP tanks. The savings on weight required, trim, and overfill capabilities give the advantage to LP. If you plan on continuing your divers education or move into more technical dives, you are halfway there.