<div dir="auto">And maybe it shouldn't be mapped that way because it is not observable.  <div dir="auto"><br></div><div dir="auto">Up for discussion... <br><div dir="auto">Thanks,</div><div dir="auto"><br></div><div dir="auto">Stuart </div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Fri, Feb 21, 2020, 08:25 Warin <<a href="mailto:61sundowner@gmail.com">61sundowner@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div>
    <div>On 21/2/20 6:16 pm, European Water
      Project wrote:<br>
    </div>
    <blockquote type="cite">
      
      <div dir="ltr">Hi Warin,
        <div><br>
        </div>
        <div>contents=water seems more appropriate</div>
      </div>
    </blockquote>
    That does not stipulate if it is drinking water. <br>
    <blockquote type="cite">
      <div dir="ltr">
        <div><br>
        </div>
        <div>Thanks, </div>
        <div><br>
        </div>
        <div>Stuart </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Fri, 21 Feb 2020 at 07:38,
          Warin <<a href="mailto:61sundowner@gmail.com" target="_blank" rel="noreferrer">61sundowner@gmail.com</a>> wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div>
            <div>So a water tank with drinking water cannot be tagged as
              drinking water because there is no local access. Fine. <br>
            </div>
            <div>Then it is only tagged as a tank with contents=water,
              or should there be yet another value for it
              contents=drinking_water?</div>
            <div>Or a sub tag water=drinking water... <br>
            </div>
            <div><br>
            </div>
            <div><br>
            </div>
            <div> On 21/2/20 5:10 pm, European Water Project wrote:<br>
            </div>
            <blockquote type="cite">
              <div dir="ltr">Hi Martin,
                <div><br>
                </div>
                <div>There are a couple of issues I see with
                  drinking_water=yes not having a concept of access. <br>
                </div>
                <div><br>
                </div>
                <div>1. Where is the observability  ? How can I know if
                  a water tank has drinking quality water or just
                  agriculture quality water ? </div>
                <div>From the wiki : </div>
                <div>"<span style="background-color:rgb(249,249,249);font-family:sans-serif;font-size:13.3px">One
                    can assume that the water is pure when many people
                    drink it every day." </span></div>
                <div><span style="background-color:rgb(249,249,249);font-family:sans-serif;font-size:13.3px">This
                    is hard to assume, and one would never know if there
                    is water ...</span></div>
                <div><br>
                </div>
                <div>2.   But there is an even bigger issue --- and I
                  will admit that I am biased because of the European
                  Water Project's use case.  </div>
                <div>For a map feature to be useful, it should have
                  universality. Ie. if one maps restaurants with
                  toilets, at least customers should have access ... </div>
                <div>Someone who goes to the OSM way where there is a
                  water tank, even with a wallet full of cash, will die
                  of thirst before getting a drink.</div>
                <div>It's similar to toilet=yes ...   A restaurant with
                  a toilet for employees only, probably shouldn't have
                  the tag. </div>
                <div>Yes, there is an access tag, but in most cases
                  access is implied. </div>
                <div><br>
                </div>
                <div>drinking_water = yes, seems to come with access in
                  99% of the 61,300 nodes and the large majority of the
                  8,178 ways. </div>
                <div><br>
                </div>
                <div>Best regards,</div>
                <div><br>
                </div>
                <div>Stuart </div>
                <div><br>
                </div>
                <div><br>
                </div>
                <div><br>
                </div>
                <div><br>
                </div>
                <div><br>
                </div>
              </div>
              <br>
              <div class="gmail_quote">
                <div dir="ltr" class="gmail_attr">On Thu, 20 Feb 2020 at
                  19:33, Martin Koppenhoefer <<a href="mailto:dieterdreist@gmail.com" target="_blank" rel="noreferrer">dieterdreist@gmail.com</a>>
                  wrote:<br>
                </div>
                <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                  <div dir="ltr">
                    <div class="gmail_quote">
                      <div dir="ltr" class="gmail_attr">Am Do., 20. Feb.
                        2020 um 19:14 Uhr schrieb European Water Project
                        <<a href="mailto:europeanwaterproject@gmail.com" target="_blank" rel="noreferrer">europeanwaterproject@gmail.com</a>>:<br>
                      </div>
                      <blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
                        <div dir="ltr">Dear All, 
                          <div>
                            <div><br>
                            </div>
                            <div>I have noticed that the the key
                              drinking_water = yes for ways is sometimes
                              used in a manner not described in the
                              wiki.</div>
                            <div><br>
                            </div>
                            <div><a href="https://wiki.openstreetmap.org/wiki/Key%3Adrinking_water" target="_blank" rel="noreferrer">https://wiki.openstreetmap.org/wiki/Key%3Adrinking_water</a> </div>
                            <div><br>
                            </div>
                            <div>The issue has to do with ways which
                              might store drinking water which is not
                              actually directly accessible.  I think
                              this tag should be for accessible water. </div>
                          </div>
                        </div>
                      </blockquote>
                    </div>
                    <div><br>
                    </div>
                    <div><br>
                    </div>
                    <div>I don't read from the wiki description that the
                      drinking water must be directly accessible. It
                      depends on the context feature. <br>
                    </div>
                    <div><br>
                    </div>
                    <div>Cheers</div>
                    <div>Martin<br>
                    </div>
                  </div>
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