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    <div class="moz-cite-prefix">On 23.02.2019 18:47, Paul Allen wrote:<br>
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cite="mid:CAPy1dOLi_dfW0YvdigrPYTZQ1XSEJdSL9phsDVYXMaNjirbQtw@mail.gmail.com"
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        <div class="gmail_quote">[...] As I see it, ditches are unlined.
          [...]</div>
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    I googled for "ditch lining irrigation" and got these examples for
    lined ditches:<br>
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    - <a class="moz-txt-link-freetext"
href="http://www.northwestlinings.com/services-available/installation-services/irrigation-ditch-liner-system/">http://www.northwestlinings.com/services-available/installation-services/irrigation-ditch-liner-system/</a><br>
    - <a class="moz-txt-link-freetext"
      href="http://www.skidmarkgeomembrane.com/Ditch-Lining.html">http://www.skidmarkgeomembrane.com/Ditch-Lining.html</a>
    - Irrigation Ditch Lining<br>
    - <a class="moz-txt-link-freetext"
      href="http://www.smartditch.com/markets-agg-irrigation.html">http://www.smartditch.com/markets-agg-irrigation.html</a>
    - "SmartDitch"<br>
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