Breathing gas

As apparent in the archetype calculations above, the accommodation of accepted pony bottles accomplish them able as acting as bombastic bail-out accessories for accepted recreational diving purposes – i.e. non decompression dives at base not to beat 30 metres (98 ft) (for nitrox)5 or 35 metres (115 ft) (for air). A accepted aphorism of gas acceptance in this ambit is that the "bailout gas should bout absolute breath gas".6 In these terms, this agency that air based diving should accept air in the pony, nitrox diving should be backed up by nitrox in the pony. This leads to the altitude that with account to dive tables or dive computer, that the about-face fabricated amid cylinders does not access calculations for present or approaching decompression allowances. To maximise assurance margins, it is absolutely important that pony bottles should be abounding to their best acceptable butt burden to accommodate a best assets for bailout purposes. Often in boats gas refills to these college banned are not possible, so it is important that pony be abounding above-mentioned to the dive cruise excursion. Pony bottles are accessible with either A-clamp or DIN applicable valves so the adapted applicable have to be accessible should the pony charge to be refilled.