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<p>I'm sorry - I didn't remember that discussion. A blower is or at
least was a common method for purging the main ballast tanks of
naval submarines once the air induction trunk had cleared the
surface. The alternative was a low-pressure bilge pump. Is that
the plan - use compressed air to reach the surface, then a blower
to finish the process? I don't see why it wouldn't work. Or were
you planning to use the small volume of 1 atm air inside the sub
as the source?</p>
<p>Marc<br>
</p>
<div class="moz-cite-prefix">On 10/12/2024 9:11 AM, Alan James via
Personal_Submersibles wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1266024065.957637.1728695473701@mail.yahoo.com">
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Mark,
<div>off topic but I did try and get your attention a few months
ago when I was playing around with the idea of blowing ballasts
with a home made blower. </div>
<div>I would probably need 5psi + of pressure and a good flow
rate. Have been looking at vacuum cleaners, inflatable boat
pumps, leaf blowers & various fan parts available on Ali.</div>
<div>There are a lot of high powered, high speed brushless motors
available in the rc hobby market that could be used.</div>
<div>Any thoughts on this thanks.</div>
<div>Alan<br>
<br>
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<div>On Sat, 12 Oct 2024 at 1:58 pm, Marc de Piolenc via
Personal_Submersibles</div>
<div><a class="moz-txt-link-rfc2396E" href="mailto:personal_submersibles@psubs.org"><personal_submersibles@psubs.org></a> wrote:</div>
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