<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div dir="ltr"></div><div dir="ltr">Hi Bill </div><div dir="ltr"><br></div><div dir="ltr">Sorry about the egg</div><div dir="ltr"><br></div><div dir="ltr">Here is some actual info to confirm what I and others have said. </div><div dir="ltr"><br></div><div dir="ltr">You cannot vacuum water any more than 33\u2019 at sea level. </div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr"><a href="https://www.nwcg.gov/course/ffm/squirt-water/35-drafting-guidelines">https://www.nwcg.gov/course/ffm/squirt-water/35-drafting-guidelines</a></div><div dir="ltr"><br></div><div dir="ltr">Jay</div><div dir="ltr"><br><blockquote type="cite">On Jan 27, 2022, at 5:34 PM, frenergy <frenergy@psln.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">\ufeff
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<p>OK, I'll gamble some egg on my face. In this case though, you
would not be "pulling a vacuum" with air (a gas) involved. If you
can fill the entire pipe with a liquid (water), the water that's
down slope of the water in the well on the other side of the ridge
it would pull the water out of the well and up over that ridge <i>as
long as</i> the pipe exit is below the dynamic water level in
the well and the pipe's intake. <br>
</p>
<p> The caveat: the pipe would have to be filled by
pumping out of the well (one time to set-up this siphon) and the
exit end of the pipe would have to be closed to be able to fill
the pipe <i>completely</i>, which would require an air vent
(exhaust vent only, not intake) at the highest point of the pipe
going over the ridge. A valve would also be required at the exit
end for flow control and prevent the siphon from drawing the well
dry. The pipe would have to rated to handle the crushing force of
the vacuum being pulled on the uphill section of pipe after it
left the well. There could absolutely not be any leaks in the
pipe.<br>
</p>
<p> I hope my seat-of-the-pants physics is working today.</p>
<p>Bill</p>
<pre class="moz-signature" cols="72">Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.
Taylorsville, CA 95983
530.284.7849
CA Lic 874049</pre>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 1/27/2022 2:28 PM, Darryl Thayer
wrote:<br>
</div>
<blockquote type="cite" cite="mid:CAHsrUiTJg07dmyi=6n+s-Wh=YH+5zQYj4BX1PVcyfnNAuXuTqg@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div class="gmail_default" style="font-family:times new
roman,serif;font-size:large">Yes, but if the rise is greater
than about 30 feet (25 feet even) the water head is greater
than atmospheric and the water will draw a vacuum in the
pipe. These numbers depend upon the location (elevation) and
temperature of the water. </div>
<div class="gmail_default" style="font-family:times new
roman,serif;font-size:large">for example at 15,000 feet the
atmosphere is about 1/2 or sea level, meaning the water column
will break at 15 feet of head. (from my high school physics,
this is the scale height) so that at 7500 feet the water
column is a maximum of 3/4 x 30 feet or 22 feet. this is from
memory and mine is not so good.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, Jan 27, 2022 at 3:51
PM William Miller <<a href="mailto:william@millersolar.com" moz-do-not-send="true" class="moz-txt-link-freetext">william@millersolar.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 lang="EN-US">
<div class="gmail-m_7610999342914707146WordSection1">
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif"">Colleagues:</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif"">All
of our water pumping customers to date have been
pumping water to tanks higher in elevation than the
well-head. Just now I am looking at a system pumping
to a pond that is lower than the well-head and lower
even than the bottom of the well. The 300\u2019 well has
the head at 1200\u2019 elevation and pumping to a pond at
800\u2019 elevation. The line goes over a 1500\u2019 ridge. If
there were nothing impeding the water flow, would it
not siphon to the pond?</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif"">Has
anyone seen the basic physics available being used to
advantage?</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif"">Thanks
in advance.</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif"">William</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Verdana,"sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,"sans-serif"">Miller
Solar</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,"sans-serif"">17395
Oak Road, Atascadero, CA 93422</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,"sans-serif"">805-438-5600</span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,"sans-serif""><a href="http://www.millersolar.com/" target="_blank" moz-do-not-send="true">www.millersolar.com</a></span></p>
<p class="MsoNormal"><span style="font-size:12pt;font-family:Arial,"sans-serif"">CA
Lic. 773985</span></p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
</div>
</div>
<br>
</blockquote>
</div>
</blockquote>
<pre class="moz-signature" cols="72"><a class="moz-txt-link-abbreviated" href="http://www.frenergy.net">www.frenergy.net</a></pre>
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