I've just pumped up my 12 litre 232 bar divers bottle with my R.W.S. pump. All I can say is, gasp, gasp, if you've got a dicky ticker don't try it, I'm knackered. Where are you Bozzerman, I need your advice as to where I can get it filled in your area. I don't want arms like Arnie. <img src="http://jsramsbottom.co.uk/bbs/e/icon_confused.gif" alt="Confused" width="15" height="22"><!--graemlin:--> <img src="http://jsramsbottom.co.uk/bbs/e/icon_confused.gif" alt="Confused" width="15" height="22"><!--graemlin:--> <img src="http://jsramsbottom.co.uk/bbs/e/icon_smile.gif" alt="Smile" width="15" height="15"><!--graemlin:-->