Sent: Wednesday, August 08, 2001 9:46
PM
Subject: Re: [PSUBS-MAILIST] question
about general design?
"Please do; I'm interested in understanding these reasons. The main one I
can think of is that at that pressure, those things just don't hold all that
much air. I used up almost all of mine yesterday, pre-charging a 20 gal.
household water pressure tank to 28 psi. That wouldn't translate into much
ballast-blowing, at all. Besides, those always make me uneasy by the time they
get up to 120."
You've got the idea, Dave. It's a question of regulation
requirements and practical working pressures. Besides, if I'm going to
take up space for an air bottle in my sub, why would I want one that carries
1/25th as much? Air is one of those things it's better to have and not
need, than vice-versa.
Pat