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><div id="ymail_android_signature"><a id="ymail_android_signature_link" href="https://mail.onelink.me/107872968?pid=NativePlacement&c=Global_Acquisition_YMktg_315_EmailSignatureGrowth_YahooMail:Search,Organize,Conquer&af_sub1=Acquisition&af_sub2=Global_YMktg&af_sub3=&af_sub4=100000945&af_sub5=OrganizeConquer__Static_">Yahoo Mail: Search, organise, conquer</a></div> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Sat, 12 Oct 2024 at 1:58 pm, Marc de Piolenc via Personal_Submersibles</div><div><personal_submersibles@psubs.org> wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> _______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a shape="rect" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"> </div> </blockquote></div>