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    <p>There are some ridiculously cheap refrigerant options but I
      wouldn't go near any system that used them...</p>
    <p>An 80/20 mix of propane and isobutane supposedly has a nearly
      identical eutectic curve (refrigerant behavior characteristic) as
      R-12 - even carries refrigerant oil through the system in a
      comparable manner. For obvious reasons, using it, particularly in
      cars, is illegal as hell.</p>
    <p>Some back-alley shops in NYC got caught using this mix and were
      fined in the 5-6 digit range...</p>
    <p>Mark J<br>
    </p>
    <div class="moz-cite-prefix">On 6/6/2020 5:34 PM, Cecil Bearden
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:cd1d6baa-4ed5-0619-23f8-7fecc319f0ba@copper.net">
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      <p>Brad:  My biggest gripe with the new refrigerants is they
        always require more equipment, more money, and more licensing. 
        Why cant they find something that is affordable..<br>
        Cecil<br>
      </p>
      <div class="moz-cite-prefix">On 6/6/2020 3:09 PM, <a
          class="moz-txt-link-abbreviated"
          href="mailto:bloomis@charter.net" moz-do-not-send="true">bloomis@charter.net</a>
        wrote:<br>
      </div>
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        cite="mid:043201d63c3e$691c0050$3b5400f0$@charter.net">
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          <p class="MsoNormal">Out a hole, bad joint, corrosion. If he
            didn’t fix the leak then he’ll be adding more. I didn’t say
            it couldn’t be a small leak, but still a leak. If it is a
            split system it probably holds 4-6 lbs. of refrigerant. A
            domestic refrigerator holds less than a pound. I had a
            little 3’ pie case that had a leak that I never found. Every
            3 months it would quit. The charge was 6oz of R-12. That is
            a tiny leak. So if pie cases, or any other refrigerant
            system had small leaks by design, refrigeration mechanics
            would never go home. It was at the Piedras Blancas Motel,
            which closed shortly thereafter. Forever. <a
              href="https://visitsansimeonca.com/what-to-do/piedras-blancas-motel/"
              moz-do-not-send="true">https://visitsansimeonca.com/what-to-do/piedras-blancas-motel/</a>
            <o:p></o:p></p>
          <p class="MsoNormal">The reason the ozone layer and
            refrigerants came under scrutiny was primarily due to the
            automobile. Older cars were notorious to leak, all averaging
            2.5lbs of R-12. Multiply that by the millions and that is a
            lot of R-12 into the atmosphere. I am not going to argue the
            science, just the outcome. That effected ALL refrigeration,
            A/C. When I first started in the trade when one needed to
            empty a system for repair you just blew it out into the
            atmosphere. Now recovery machines and a slew of
            refrigerants. I got out of commercial refrigeration as the
            plethora of refrigerants was overwhelming. You never knew
            what the last guy put in a system. Used to be three, R=12
            for most medium temp/ some low temp, R-22 for A/C, and R-502
            for low temp. Simple and easy. I couldn’t work on a new A/C
            system as I’ve never worked with 410a. Totally different
            animal. Now it’s already being phased out. Long live
            ammonia! Easy, and enviro friendly. Mostly. <br>
            Think of a pound of refrigerant like a pound of propane.
            Most of us know what that is. Not much. Liquid of course. <o:p></o:p></p>
          <p class="MsoNormal">Brad<o:p></o:p></p>
          <p class="MsoNormal"><o:p> </o:p></p>
          <p class="MsoNormal"><o:p> </o:p></p>
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            <div style="border:none;border-top:solid #E1E1E1
              1.0pt;padding:3.0pt 0in 0in 0in">
              <p class="MsoNormal"><b>From:</b> AT <a
                  class="moz-txt-link-rfc2396E"
                  href="mailto:at-bounces@lists.antique-tractor.com"
                  moz-do-not-send="true"><at-bounces@lists.antique-tractor.com></a>
                <b>On Behalf Of </b>Mike M<br>
                <b>Sent:</b> Saturday, June 06, 2020 12:16 PM<br>
                <b>To:</b> <a class="moz-txt-link-abbreviated"
                  href="mailto:at@lists.antique-tractor.com"
                  moz-do-not-send="true">at@lists.antique-tractor.com</a><br>
                <b>Subject:</b> Re: [AT] While we are OT on
                Refrigerators.<o:p></o:p></p>
            </div>
          </div>
          <p class="MsoNormal"><o:p> </o:p></p>
          <p class="MsoNormal" style="margin-bottom:12.0pt">So an air
            conditioning system can't have a small leak that reduces the
            level of refrigerant over time? Then why did my son in law
            just have to add 2 lbs to our older AC unit? Where did it
            go?<br>
            <br>
            Mike M<br>
             <o:p></o:p></p>
          <div>
            <p class="MsoNormal">On 6/6/2020 2:59 PM, <a
                href="mailto:bradloomis@charter.net"
                moz-do-not-send="true">bradloomis@charter.net</a> wrote:<o:p></o:p></p>
          </div>
          <blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
            <p class="MsoPlainText">If it leaks it has a leak. No over
              time, no evaporating. A leak. Some repairable some not so
              much. Especially on a domestic refrigerator. Gets into
              cost of repair exceeds value of equipment. However that
              could cause excessive run time but the compartments would
              be warm, eventually hot. Dean indicated that temps were
              OK. Granted without a thermometer. Calibrated fingers? <span
                style="font-family:"Segoe UI
                Emoji",sans-serif">😊</span><o:p></o:p></p>
            <p class="MsoPlainText"> <o:p></o:p></p>
            <p class="MsoPlainText">Brad<o:p></o:p></p>
            <p class="MsoPlainText"> <o:p></o:p></p>
            <p class="MsoPlainText">-----Original Message-----<br>
              <br>
              Subject: Re: [AT] While we are OT on Refrigerators.<o:p></o:p></p>
            <p class="MsoPlainText"> <o:p></o:p></p>
            <p class="MsoPlainText">I would be suspicious of your
              refrigerant level, it can leak over time.<o:p></o:p></p>
            <p class="MsoPlainText"> <o:p></o:p></p>
            <p class="MsoPlainText">Mike M<o:p></o:p></p>
            <p class="MsoPlainText"> <o:p></o:p></p>
            <p class="MsoPlainText">On 6/5/2020 9:14 PM, <a
                href="mailto:deanvp@att.net" moz-do-not-send="true"><span
                  style="color:windowtext;text-decoration:none">deanvp@att.net</span></a>
              wrote:<o:p></o:p></p>
            <p class="MsoPlainText">> We have a GE side by side
              refrigerator, Model TFX27F, with all the bells and
              whistles Front Door Ice and Water dispenser, access door
              to refrigerator without opening the big door, etc  etc. 
              In fact we have a duplicate running in our kitchen right
              now.  This one was used as extra freezer and refrigerator
              space for awhile when we moved here 20 years ago and then
              it was turned off and not used for at least 10 years.  
              Well in my current need of making space in the garage I
              fired it back up to check everything to get it ready for
              sale.  It freezes and the refrigerator compartment gets
              cool like it should, well I haven't put a thermometer in
              each compartment, but it appears to me to be working. 
              Except..... it never quits running.  Not quite true  it
              runs about 95% of the time. Without having door opened or
              anything disturbed.   We have had such good luck with this
              era of combination freezer refrigerator I thought it might
              be worth something to those just getting on their feet. 
              I've cleaned the whole guts under the compartments and it
              really wasn't all that bad. The coils are clean as can
              be.  I doubt this thing is worth more than $100 running as
              it should but if I could find a cheap fix it might be
              worth spending $20 on a part or so.<o:p></o:p></p>
            <p class="MsoPlainText">> <o:p></o:p></p>
            <p class="MsoPlainText">> And to satisfy the list needs
              of being on topic. I need to make more room for Antique
              Tractor stuff I don't need.    Any one have a test I can
              run or a particular part I can check? I'm pretty
              proficient electronics wise.  Besides if I could get this
              running properly somebody might take this off my hands and
              I won't have to deal with getting rid of it. It would take
              my loader tractor to get it in to my P/U bed. Big heavy
              sucker.   Help?  PS: I don't remember the last time I
              threw something away but I do remember it was
              traumatic.!   <span style="font-family:"Segoe UI
                Emoji",sans-serif">😊</span><o:p></o:p></p>
            <p class="MsoPlainText">> <o:p></o:p></p>
            <p class="MsoPlainText">> Dean VP<o:p></o:p></p>
            <p class="MsoPlainText">> Snohomish, WA 98290<o:p></o:p></p>
            <p class="MsoNormal"><br>
              <br>
              <o:p></o:p></p>
            <pre>_______________________________________________<o:p></o:p></pre>
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        <pre class="moz-quote-pre" wrap="">_______________________________________________
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