I have a lectra/san control box the original from my Columbia. I took it off when I installed a holding tank. The lectrasan was not thereso I removed it. If anyone wants it is yours if you pay the shipping. Soon goes to the dump. I have no use for it.
Yanni Marinated S/V Princess Thalia Columbia 8.7 #73 Hamilton-Fifty Point @ H3 N 43.13.406 W 73.37.431 ----- Original Message ----- From: "Rick Morel" <[EMAIL PROTECTED]> To: <[email protected]> Sent: Thursday, August 07, 2008 10:38 AM Subject: Re: [Liveaboard] : battery bank hook-up > At 04:46 PM 8/5/2008, Arild Jensen <[EMAIL PROTECTED]> wrote: >>REPLY >>Not to belittle Norm's concern; but does anyone know the exact >>process and voltage by which chlorine gas is evolved from sea water >>submerging the batteries. >>I have conducted experiments in which I deliberately fed raw DC power >>from a battery into sea water to test for stray current corrosion. >>Minute amounts of hydrogen were generated but no sign of a greenish gas >>like chlorine. >> >>I think it requires more than 12V or even 24V to create enough >>electrolysis to create chlorine gas in any appreciable amounts at a >>rapid rate. Submarine battery banks are series wired for several >>hundred volts. Quite a different thing. > > > Chlorine is produced. The amount depends upon the current. This is > how our Raritan Lectra/San MSD works. There are electrodes inside > each chamber. The old set had 5, about 3" X 1-1/2", the new one I put > in has 3 per side, about 4" X 3" I think. They're spaced about 1/4" > apart. This gives enough surface area, and distance, to draw about 20 > Amps. One has to add salt each flush if not in full salinity > seawater. This thing produces enough chlorine so that if you operate > it with the top removed, it'll "run you out"! > > No way is enough chlorine going to be produced between the terminals > of a submerged battery. The current is way too low. It does make > sense that hundreds of volts in a submarine would be a different story. > > As an aside, years ago Jacques Cousteau had a sub with the batteries > AND electric motors outside, open to seawater. They filled the > battery airspaces with some kind of oil, I think vegetable, and used > motor brushes that wouldn't wear down in water. Motor cooling was the > seawater going though the motors. I don't remember the voltage used. > > Rick > > > ----------------------------------------------------------------------------------------------------------- > The word 'experienced' often refers to someone who has gotten away with > doing the wrong thing more frequently than you have. > ----------------------------------------------------------------------------------------------------------- > > > _______________________________________________ > Liveaboard mailing list > [email protected] > To adjust your membership settings over the web > http://www.liveaboardnow.org/mailman/listinfo/liveaboard > To subscribe send an email to [EMAIL PROTECTED] > > To unsubscribe send an email to [EMAIL PROTECTED] > The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ > > To search the archives > http://www.mail-archive.com/[email protected] > > The Mailman Users Guide can be found here > http://www.gnu.org/software/mailman/mailman-member/index.html > > No virus found in this incoming message. > Checked by AVG - http://www.avg.com > Version: 8.0.138 / Virus Database: 270.5.12/1597 - Release Date: > 07/08/2008 5:54 AM > > > _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
