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I was wondering if anyone had a source for 24 or 48 VDC "depth
gauges" that could be used in a cistern or shallow well. A SCUBA
depth gauge on the wrist is fairly accurate. It would seem like a signal
could be sent electronically though a wire and be read outside the tank.
I've never heard of one, however. Does such a device exist?<br><br>
Thanks,<br><br>
Drake <br><br>
At 08:30 PM 4/25/2015, you wrote:<br>
<blockquote type=cite class=cite cite="">I agree with Windy and this
article, the electric sounders can be finicky. I've never
tried the airline method, but some well folks from Texas taught me to use
an inverted plumbing fitting on a string. When it hits the
water you can feel it on the line, because the small pocket of trapped
air causes the weight to stall momentarily. You can confirm
by repeatedly raising it and "popping" it at the water
surface. If its quiet, you can hear it too. The bottom of the well
can be sounded just like with any weighted line: raise and lower
repeatedly, finding the spot that the line goes slack. I've used
this as deep as 800 ft.<br>
For shallower wells we just attach this fitting straight to our 300 ft
measuring tape; if it's deeper, we tape the string to mark the water
level and Total depth, then measure the string after.<br><br>
<pre>R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760</pre><font face="Courier New, Courier"></font>On 4/25/2015
2:36 PM, Allan Sindelar wrote:<br>
<blockquote type=cite class=cite cite="">For those Wrenches that work
with deep-well water pumping installations, the attached guide is useful
to file away for later use. Windy sent it to me, and it has three options
for determining the depth of water in a well. <br>
I taped a 1/4" plastic irrigation tube to the
hand-installation-method bundle of flexible pipe, wire, signal wire and
safety rope in an installation yesterday. Easy rough-in for testing water
table drop and pump submergence over years.<br><br>
The guide was published in 2000 by the Oregon State University Extension
Service.<br>
Allan<br><br>
<b>Allan Sindelar</b><br>
<a href="mailto:allan@sindelarsolar.com">allan@sindelarsolar.com</a><br>
NABCEP Certified PV Installation Professional<br>
NABCEP Certified Technical Sales Professional<br>
New Mexico EE98J Journeyman Electrician<br>
Founder (Retired), Positive Energy, Inc.<br>
<b>505 780-2738 cell</b><br><br>
<br>
-------- Forwarded Message -------- <br>
Subject: air tube for water level testing <br>
Date: Wed, 22 Apr 2015 19:07:37 -0600 <br>
From: Windy Dankoff <br>
To: Allan Sindelar <br><br>
<br>
<pre>Following is a very cheap means of testing depth to water, pump
running or not.
Allan - Get 230 feet of 1/4" irrigation tube to put down the well.
It will be used to make pressure test at any time, using a bicycle pump.
Instructions attached. This will be for use of the "Air Line"
method shown on this doc. Tape the tubing to the pipe, along with the
level probe
cable. The bottom of tube can be where the probe is - just above the
check valve.
</pre><font face="Courier New, Courier"></font><br><br>
<br><br>
<br>
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