<div dir="auto">DHello everyone my name is Frank Bowman I live in Tampa Florida I am currently accumulating parts to build a k250 sub I have loved this model for years since I saw one on the side of the road in key west! I have always wanted to build one and I'm finally going to do it! Our bay is only 20feet deep on a good day except for in the sipping channel wich is 43 feet and much to busy to play in I plan on building the sub to the original plans that I will be purchasing soon any recommendations on acrylic thickness for the depth of water I'll be diving in and ideas on hatches would be greatly appreciated! </div><div class="gmail_extra"><br><div class="gmail_quote">On Feb 2, 2017 6:18 PM, "via Personal_Submersibles" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Send Personal_Submersibles mailing list submissions to<br>
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Today's Topics:<br>
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1. scrubber performance (River Dolfi via Personal_Submersibles)<br>
2. Re: scrubber performance (Alan via Personal_Submersibles)<br>
3. Re: co2 scrubber (via Personal_Submersibles)<br>
4. Re: scrubber performance (via Personal_Submersibles)<br>
5. Re: co2 scrubber (hank pronk via Personal_Submersibles)<br>
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Message: 1<br>
Date: Thu, 2 Feb 2017 15:37:01 -0500<br>
From: River Dolfi via Personal_Submersibles<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a><br>
Subject: [PSUBS-MAILIST] scrubber performance<br>
Message-ID:<br>
<CAGL1GvHsasWDuKzFqyDZi0gpR_<wbr>ONjXRm+pomH8=<a href="mailto:EpZJKKop9vw@mail.gmail.com">EpZJKKop9vw@mail.<wbr>gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
I did side-by-side tests on several low-cost ambient CO2 sensors when I was<br>
doing air quality instrumentation work, and I eventually settled on these<br>
units from COZIR.<br>
<a href="http://www.co2meter.com/products/cozir-0-2-co2-sensor" rel="noreferrer" target="_blank">http://www.co2meter.com/<wbr>products/cozir-0-2-co2-sensor</a><br>
<br>
They're only about $70US, have built in self calibration, super reliable,<br>
and have very low current draw compared to other sensors. The big rub is<br>
that it isn't analog output, but serial.<br>
<br>
You would have to interface it with a microcontroller (which is an easy<br>
enough job with a $20 Arduino) and have it set up to display to an LCD,<br>
trip an alarm at critical levels, possible demand control of the scrubber,<br>
other sensors, etc.<br>
<br>
I have an identical system built for the health department currently<br>
running 70 (70!!!) of these sensors and others on battery power across the<br>
city in the elements. They are that good.<br>
<br>
I recently found about half of a medical scrubber in a dumpster, so I've<br>
been thinking about life support lately.<br>
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Message: 2<br>
Date: Fri, 3 Feb 2017 10:30:12 +1300<br>
From: Alan via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
To: Personal Submersibles General Discussion<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
Subject: Re: [PSUBS-MAILIST] scrubber performance<br>
Message-ID: <<a href="mailto:AC997834-A066-4D52-9769-EA45A14D61A6@yahoo.com">AC997834-A066-4D52-9769-<wbr>EA45A14D61A6@yahoo.com</a>><br>
Content-Type: text/plain; charset="us-ascii"<br>
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That looks good River.<br>
They have a sensor pump kit add on.<br>
<a href="http://www.co2meter.com/collections/co2-sensors/products/gas-sensor-micro-pump" rel="noreferrer" target="_blank">http://www.co2meter.com/<wbr>collections/co2-sensors/<wbr>products/gas-sensor-micro-pump</a><br>
Is this necessary? Does the unit need to be put in an air flow?<br>
I noticed other add ons, like water filter. Any recommendations regarding required add ons.<br>
Alan<br>
<br>
Sent from my iPad<br>
<br>
> On 3/02/2017, at 9:37 AM, River Dolfi via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>> wrote:<br>
><br>
> I did side-by-side tests on several low-cost ambient CO2 sensors when I was doing air quality instrumentation work, and I eventually settled on these units from COZIR.<br>
> <a href="http://www.co2meter.com/products/cozir-0-2-co2-sensor" rel="noreferrer" target="_blank">http://www.co2meter.com/<wbr>products/cozir-0-2-co2-sensor</a><br>
><br>
> They're only about $70US, have built in self calibration, super reliable, and have very low current draw compared to other sensors. The big rub is that it isn't analog output, but serial.<br>
><br>
> You would have to interface it with a microcontroller (which is an easy enough job with a $20 Arduino) and have it set up to display to an LCD, trip an alarm at critical levels, possible demand control of the scrubber, other sensors, etc.<br>
><br>
> I have an identical system built for the health department currently running 70 (70!!!) of these sensors and others on battery power across the city in the elements. They are that good.<br>
><br>
> I recently found about half of a medical scrubber in a dumpster, so I've been thinking about life support lately.<br>
> ______________________________<wbr>_________________<br>
> Personal_Submersibles mailing list<br>
> <a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.<wbr>org</a><br>
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Message: 3<br>
Date: Thu, 2 Feb 2017 16:29:34 -0600<br>
From: via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
To: Personal Submersibles General Discussion<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
Subject: Re: [PSUBS-MAILIST] co2 scrubber<br>
Message-ID: <<a href="mailto:A4F1E58C-8CD0-4968-ACF8-B5C1623AD4B9@gmail.com">A4F1E58C-8CD0-4968-ACF8-<wbr>B5C1623AD4B9@gmail.com</a>><br>
Content-Type: text/plain; charset="us-ascii"<br>
<br>
Started life with axial scrubber but now use radial design. Has worked much better for me.<br>
<br>
Cliff<br>
<br>
Sent from my iPad<br>
<br>
> On Feb 2, 2017, at 1:06 PM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>> wrote:<br>
><br>
> Thanks' guys, that helps.<br>
> Cliff, I assume you have an axial scrubber<br>
> Hank<br>
> ______________________________<wbr>_________________<br>
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Message: 4<br>
Date: Thu, 2 Feb 2017 16:46:57 -0600<br>
From: via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
To: Personal Submersibles General Discussion<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
Subject: Re: [PSUBS-MAILIST] scrubber performance<br>
Message-ID: <<a href="mailto:09EAACC2-6221-4879-A137-ADE7EABDEA40@gmail.com">09EAACC2-6221-4879-A137-<wbr>ADE7EABDEA40@gmail.com</a>><br>
Content-Type: text/plain; charset="us-ascii"<br>
<br>
I have had good performance from this company but with their K30 sensor. $85 and does give 0-5v analog output signal. It span is 0-10,000 ppm (0-2%).<br>
<br>
Cliff<br>
<br>
Sent from my iPad<br>
<br>
> On Feb 2, 2017, at 2:37 PM, River Dolfi via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>> wrote:<br>
><br>
> I did side-by-side tests on several low-cost ambient CO2 sensors when I was doing air quality instrumentation work, and I eventually settled on these units from COZIR.<br>
> <a href="http://www.co2meter.com/products/cozir-0-2-co2-sensor" rel="noreferrer" target="_blank">http://www.co2meter.com/<wbr>products/cozir-0-2-co2-sensor</a><br>
><br>
> They're only about $70US, have built in self calibration, super reliable, and have very low current draw compared to other sensors. The big rub is that it isn't analog output, but serial.<br>
><br>
> You would have to interface it with a microcontroller (which is an easy enough job with a $20 Arduino) and have it set up to display to an LCD, trip an alarm at critical levels, possible demand control of the scrubber, other sensors, etc.<br>
><br>
> I have an identical system built for the health department currently running 70 (70!!!) of these sensors and others on battery power across the city in the elements. They are that good.<br>
><br>
> I recently found about half of a medical scrubber in a dumpster, so I've been thinking about life support lately.<br>
> ______________________________<wbr>_________________<br>
> Personal_Submersibles mailing list<br>
> <a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.<wbr>org</a><br>
> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="noreferrer" target="_blank">http://www.psubs.org/mailman/<wbr>listinfo.cgi/personal_<wbr>submersibles</a><br>
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Message: 5<br>
Date: Thu, 2 Feb 2017 23:12:52 +0000 (UTC)<br>
From: hank pronk via Personal_Submersibles<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
To: Personal Submersibles General Discussion<br>
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>><br>
Subject: Re: [PSUBS-MAILIST] co2 scrubber<br>
Message-ID: <<a href="mailto:1219036942.614686.1486077172632@mail.yahoo.com">1219036942.614686.<wbr>1486077172632@mail.yahoo.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
I am a dope, lol, I was mixed up on the?terminology , I had an axial and have just installed a new radial scrubber.Hank<br>
<br>
On Thursday, February 2, 2017 3:29 PM, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>> wrote:<br>
<br>
<br>
Started life with axial scrubber but now use radial design. ?Has worked much better for me.<br>
Cliff<br>
<br>
Sent from my iPad<br>
On Feb 2, 2017, at 1:06 PM, hank pronk via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.<wbr>org</a>> wrote:<br>
<br>
<br>
Thanks' guys, that helps. ?Cliff, I assume you have an axial scrubberHank<br>
<br>
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End of Personal_Submersibles Digest, Vol 44, Issue 14<br>
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