<html><body><span style="font-family:Verdana; color:#000000; font-size:10pt;"><div>Definitely a good read. I guess my question is though, since our subs are in the water for such a short amount of time a sacrificial zinc anode isn't really necessary and with a good paint system and regular inspection is it necessary to run ground direct rather than use the hull?</div>
<div>Thanks,</div>
<div>Scott Waters </div>
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<DIV id=wmQuoteWrapper>-------- Original Message --------<BR>Subject: Re: [PSUBS-MAILIST] grounding question<BR>From: James Frankland <<a href="mailto:jamesf@guernseysubmarine.com">jamesf@guernseysubmarine.com</a>><BR>Date: Mon, December 09, 2013 8:22 am<BR>To: Personal Submersibles General Discussion<BR><<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>><BR><BR>
<DIV>Good link here Scott</DIV>
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<DIV><A href="http://www.kastenmarine.com/corrosion.htm" target=_blank>http://www.kastenmarine.com/corrosion.htm</A></DIV>
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<DIV class=gmail_quote>On 9 December 2013 14:08, swaters <SPAN dir=ltr><<A href="mailto:swaters@waters-ks.com" target=_blank>swaters@waters-ks.com</A>></SPAN> wrote:<BR>
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<DIV>I might have to rethink that then. I currently have six tru hulls (3 in each pod). One vent/chargeing plug, one 12V and one 36V. There is no place to run a negative with my current set up with the exception of not using tru hulls and just running wires, but there would be no battery pod breach protection. Just curious, I know that electricity promotes corrosion in salt water, but how would the metal corrod under the paint especially when it is in water for a limited amount of time?</DIV>
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<DIV>Thanks,</DIV>
<DIV>Scott Waters</DIV>
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<DIV style="FONT-SIZE: 75%; COLOR: #575757">Sent from my U.S. Cellular© Smartphone</DIV></DIV><BR>"Smyth, Alec" <<A href="mailto:Alec.Smyth@covisint.com" target=_blank>Alec.Smyth@covisint.com</A>> wrote:<BR>
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<div class=MsoNormal style="font-size:12pt;"><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d">Hi Scott,<U></U><U></U></SPAN></div>
<div class=MsoNormal style="font-size:12pt;"><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d"><U></U> <U></U></SPAN></div>
<div class=MsoNormal style="font-size:12pt;"><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d">If I understand you correctly, it sounds like you might have wired her as you would a car, with cables for the positive and using the chassis for the negative. This is a steel boat, so instead of that, what one does is two cables, one for positive and one for negative, but both of them equally isolated from the hull. Else, you are inviting a case of accelerated corrosion. <U></U><U></U></SPAN></div>
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<div class=MsoNormal style="font-size:12pt;"><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d">Best,<U></U><U></U></SPAN></div>
<div class=MsoNormal style="font-size:12pt;"><SPAN style="FONT-SIZE: 11pt; FONT-FAMILY: 'Calibri','sans-serif'; COLOR: #1f497d"><BR>Alec <U></U><U></U></SPAN></div>
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<div class=MsoNormal style="font-size:12pt;"><B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'"> Personal_Submersibles [mailto:<A href="mailto:personal_submersibles-bounces@psubs.org" target=_blank>personal_submersibles-bounces@psubs.org</A>] <B>On Behalf Of </B>swaters<BR><B>Sent:</B> Monday, December 09, 2013 12:57 AM<BR><B>To:</B> Personal Submersibles General Discussion<BR><B>Subject:</B> Re: [PSUBS-MAILIST] grounding question<U></U><U></U></SPAN></div></DIV></DIV>
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<div class=MsoNormal style="font-size:12pt;">I connected mine to the electrical pannel through the body of the sub<U></U><U></U></div></DIV>
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<div class=MsoNormal style="font-size:12pt;">Thanks,<U></U><U></U></div></DIV>
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<div class=MsoNormal style="font-size:12pt;">Scott Waters<U></U><U></U></div></DIV>
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<div class=MsoNormal style="font-size:12pt;"><SPAN style="FONT-SIZE: 9pt; COLOR: #575757">Sent from my U.S. Cellular© Smartphone<U></U><U></U></SPAN></div></DIV></DIV>
<div class=MsoNormal style="font-size:12pt;"><BR>brian <<A href="mailto:brian@ojaivalleybeefarm.com" target=_blank>brian@ojaivalleybeefarm.com</A>> wrote:<BR>Hi All,<BR> On the K boats where does one normally connect the ground to the sub? <BR><BR>Brian<U></U><U></U></div></DIV></DIV></DIV><BR>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org" target=_blank>Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target=_blank>http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR><BR></BLOCKQUOTE></DIV><BR>
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