<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_ym19_1_1493069285142_4928"><span>Alan,</span></div><div id="yui_3_16_0_ym19_1_1493069285142_4928"><span>Yes KIC will wind me up lol. I love the dual scrubber plan, I am doing the same. No model T, but no power windows and a rubber floor mat. </span></div><div id="yui_3_16_0_ym19_1_1493069285142_4928"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Monday, April 24, 2017 2:15 PM, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv5167968127"><div><div>Hank,</div><div>I nearly said it is in line with my KIC ( Keep It Complicated) principal to</div><div>wind you up.</div><div>In my case, in a very small hull, I will have a lot less time to respond if</div><div>my air content / pressure changes. That's why I'll need 2 scrubbers </div><div>like DW. I am going to pursue this colour sensor thing as it's just another</div><div>aid to help monitor absorbent usage. As you say monitoring the time</div><div>is the best way, & I'll probably do that electronically too!</div><div>BTW, I notice from your video thar you are not driving a model T Ford anymore!</div><div>Alan</div><div><br clear="none"></div><div><br clear="none"><br clear="none"><div>Sent from my iPad</div></div><div class="yiv5167968127yqt4463682242" id="yiv5167968127yqt51692"><div><br clear="none">On 25/04/2017, at 12:14 AM, hank pronk via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"><br clear="none"></div><blockquote type="cite"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"><div id="yiv5167968127yui_3_16_0_ym19_1_1492991495765_39898"><span>Alan,</span></div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1492991495765_39897"><span id="yiv5167968127yui_3_16_0_ym19_1_1492991495765_39896">I love your solutions, not within the KISS principal mind you. I like your idea to use a toy helicopter levelling system to control solenoids for level sinking. </span> I just keep track of the time my scrubber is on. </div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1492991495765_39897">Hank</div> <div class="yiv5167968127qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv5167968127yahoo_quoted" style="display:block;"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"> <div dir="ltr"><font size="2" face="Arial"> On Sunday, April 23, 2017 10:14 PM, Alan James via Personal_Submersibles <<a rel="nofollow" shape="rect" ymailto="mailto:personal_submersibles@psubs.org" target="_blank" href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br clear="none"></font></div> <br clear="none"><br clear="none"> <div class="yiv5167968127y_msg_container"><div id="yiv5167968127"><div><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;"><div id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2835"> I like the idea of color indicating absorbent, </div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2834">only problem is my scrubber will be positioned where I can't see it.</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2891">I just did a quick Google & came up with this color sensor.</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2849"><a rel="nofollow" shape="rect" class="yiv5167968127enhancr2_79511402-752b-2c79-17fc-c344ff594f87" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2859" target="_blank" href="https://www.adafruit.com/product/1334">RGB Color Sensor with IR filter and White LED - TCS34725</a></div><div id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3073"><br clear="none"></div><div class="yiv5167968127yahoo-link-enhancr-card yiv5167968127yahoo-link-enhancr-not-allow-cover yiv5167968127ymail-preserve-class yiv5167968127ymail-preserve-style" dir="ltr" id="yiv5167968127enhancr2_79511402-752b-2c79-17fc-c344ff594f87" style="" data-size="medium" data-type="yenhancr" data-category="article" data-embed-url="" data-url="https://www.adafruit.com/product/1334"> <a rel="nofollow" shape="rect" class="yiv5167968127yahoo-enhancr-cardlink" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2890" style="color:rgb(0, 0, 0);text-decoration:none;" target="_blank" href="https://www.adafruit.com/product/1334"> <table class="yiv5167968127card-wrapper" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2889" style="max-width:400px;" border="0" cellspacing="0" cellpadding="0"><tbody id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2888"><tr id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2887"><td colspan="1" rowspan="1" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2886" width="400"> <table class="yiv5167968127card-info" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2885" width="100%" style="background:rgb(255, 255, 255);border-width:1px 1px 3px;border-style:solid;border-color:rgb(224, 228, 233) rgb(224, 228, 233) rgb(0, 0, 0);max-width:400px;" border="0" cellspacing="0" cellpadding="0"><tbody id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2884"><tr id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2883"><td colspan="1" rowspan="1" style="padding:16px 0px 16px 12px;vertical-align:top;"> </td><td colspan="1" rowspan="1" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2882" style="padding:16px 12px;width:99%;vertical-align:middle;"> <h2 class="yiv5167968127card-title" style="margin:0px 0px 4px;">RGB Color Sensor with IR filter and White LED - TCS34725</h2> <div class="yiv5167968127card-richinfo-primary" style="color:rgb(153, 153, 153);line-height:15px;font-size:11px;">By Adafruit Industries</div> <div class="yiv5167968127card-description" style="color:rgb(153, 153, 153);line-height:15px;font-size:11px;">Your electronics can now see in dazzling color with this lovely color light sensor. We found the best color sens...</div> </td><td colspan="1" rowspan="1" class="yiv5167968127card-share-container"></td></tr></tbody></table> </td></tr></tbody></table> </a></div><div id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2892"><br clear="none"></div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2893">If you put multiple sensors down the outside of an acrylic scrubber canister you could</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3008">read the color change in the absorbent & have it displayed elsewhere. </div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3007">You could perhaps use the one sensor board with multiple sensors. Another variation is</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_2963">that you may be able to pick up the heat from the chemical reaction with the infrared</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3030">sensor & monitor levels that way.</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3029"> An additional thought on this subject is to put a second CO2 sensor at the outlet of the </div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3053">scrubber to pick up early when there were higher concentrations of CO2 coming out.</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3074">So sensor 1 is the ambient atmosphere concentration & sensor 2 is showing what</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3104">level of CO2 there is from the scrubber that will be mixing with the atmosphere.</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3128">Alan</div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3103"><br clear="none"></div><div dir="ltr" id="yiv5167968127yui_3_16_0_ym19_1_1493005766610_3054"><br clear="none"></div></div></div></div>_______________________________________________<br clear="none">Personal_Submersibles mailing list<br clear="none"><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br clear="none"><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br clear="none"><br clear="none"><br clear="none"></div> </div> </div> </div></div></div></blockquote></div><blockquote type="cite"><div><span>_______________________________________________</span><br clear="none"><span>Personal_Submersibles mailing list</span><br clear="none"><span><a rel="nofollow" shape="rect" ymailto="mailto:Personal_Submersibles@psubs.org" target="_blank" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br clear="none"><span><a rel="nofollow" shape="rect" target="_blank" href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br clear="none"></div></blockquote></div></div><div class="yqt4463682242" id="yqt57677">_______________________________________________<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><br><br></div> </div> </div> </div></div></body></html>