Locating A water Line

   / Locating A water Line #11  
The witching works for some folks and not worth squat for others. You can give it a try. If you can find some solid copper wire remove the insulation. Make a ninety degree with say six inches one leg and eighteen inches the other. Make a matching pair. The gauge of the wire only has to be thick enough to maintain rigidity.

Place the wires where the short leg is in each of your curled hands with the long leg pointing straight out in front of you. Don't grip the wires tight. Your hands are only bushings that hold the long leg parallel to the ground. Walk ACROSS the suspected path of the line you want to locate.

Supposedly the witching only locates things that are flowing, telephone, works great on telephone lines, power, and gas too. I've seen it where water lines wouldn't witch until a water faucet was turned on inside.

Here's the way I'd witch your yard. Since the lawn is so nice I'd pick up some of those little flags the box stores carry for marking things in a yard. I'd walk across the yard slowly.

When the two wires gravitate together and cross I'd put a flag. I'd repeat this process every five feet, going across the yard marking the places where the wires cross. It is weird when it happens if you've never done it before. On their own the wires just cross and then uncross. /forums/images/graemlins/confused.gif

After I'd done the witching across the yard and marked the crossings I'd step back and look for a pattern. You have to keep in mind that if the water line is running parallel to the phone line and only a couple of feet apart you might have a real confusing pattern. At one location the telephone wire might be the stronger force while five feet away it might have taken a dip in the trench and the water might be the stronger one.

You can buy a professional witching tool at Northern Supply, or at least they used to sell one. It looks like a bicycle handle bar grip with the bar still inside it. It has a telescoping radio antenna thing that comes out of the handle. When it's fully extended there's a hinge to allow the extended end to fall to a ninety and the whole thing pivots freely for perfect witching without human grip becoming a factor.

I had one for about ten years and finally just gave it to someone whom it worked for. The copper wires worked okay for me but that darn thing worked sometimes and didn't others. /forums/images/graemlins/crazy.gif

You can also buy a probe for probing for utilities. They are made of fiberglas. That is the best thing to have if you need one often. You can make one out of steel, just don't sharpen that point! If the buried power is not in conduit or you hit the telephone cable with that point. Neither event is on the list of pleasurable ones. /forums/images/graemlins/smirk.gif

Saturday we located the water line before we dug the trench for the power and communication lines for the gate (see fence project under projects). The customer knew approximately where it was. What we were looking for was the forty five where it made the turn for the house so we could trench to the house without cutting it maybe at least twice.

Since we were in gumbo clay and we knew the line was approximately eighteen inches to two feet deep I first scratched off about a foot of top soil with the trencher. I made a probe with a piece of half inch steel rod. I also had a softball sized boulder I'd drilled a half inch hole in earlier for grins on the truck, great combination for a great probe.

In the clay you can only go down once semi easy. The next insert gums up with the residue of the first probe and you've got in your face real life gridlock. So we had a five gallon pail of water. The probe was soaked in water prior to each probe.

It's amazing. But a plastic line feels and sounds different than anything else. A good confirmation pass is to move about a foot in the direction of the line and try again. If it's the real deal you'll hit it again.

Once we located it at the point where we started we moved where the customer thought the line made the turn. We couldn't find it. Then it was the old cut that section in half and try. We did that until with the probe I had the forty five dead on. We didn't even dig it up to verify. It was that dead on.

Good luck. If it was easy the girls would be doing it.
 
   / Locating A water Line #12  
</font><font color="blue" class="small">( The water District tells me there is no way to locate it other than if it is found when the cable is buried next spring as there was no tracer wire buried with it.)</font>

The guy at your water district sounds pretty ignorant for holding such a job. Of course the line can be located without a metal tracer. This man needs to get intouch with modern technlogy. The private water company that we use for leaks and big maintenance jobs, use sensative listening equipment to locate hidden H2O lines. It takes experience to understand the differant sounds that are heard from the sensor plate being passed over the ground surface. This method is incredibly effective.
If you know of a person that has the touch for dousing, call him. A pair of bent brasing rods in the right hands can do a marvelous job.
 
   / Locating A water Line #13  
I just use old coathangers since they're always handy. First time I tried I was fooling around at Dad's place, located the water line to the barn easy enough then kept walking around, eyes on the ground and located an overhead power line duh. Once I had to dig up a buried submersible water pump, located the spot dug down 3 feet and hit the well cap dead on, saved a lot of shovelling. A guy from work needed to change a footvalve so I went over and walked the yard kept getting a straight run to his garage. After repeatedaly asking if he had power to the shed and getting no for an answer dug down in a spot to check it out. Found an old electric cable that had been disconnected which is why he kept saying he had no power. I don't know why or how it works but I'am glad that I don't have to spend money on locaters.
 
   / Locating A water Line
  • Thread Starter
#14  
Thanks harv!
I will give it a try as at this point I have virtually "Nothing to Lose"

Who Knows? I may get Lucky /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif
 
   / Locating A water Line #15  
One time I had a leaky water pipe under my garage with no way of knowing where exactly. The plumber brought in a listening device and located the leak EXACTLY. Thus, I only had a small concrete patch on my floor instead of something much worse.

Maybe something like this would work for you?
 
   / Locating A water Line
  • Thread Starter
#16  
It sounds interesting Fishman.I will have to research the rental places and a plumbing supply to see If anyone in this neck of the woods has such a beast!

Many Thanks for the suggestion....Tom
 
   / Locating A water Line #17  
If dousing - waterwitching doesn't work, try to find a geophone. It's like a doctors stethescope, except much larger, with two heads. If you can't find a geophone, try to make one out of a pair of regular stethescopes and two large blocks of metal.
When things are quiet for the day, put the two blocks on the ground a couple of feet apart, listen with the s'scopes while someone turns the water on and off. Keep doing this as you move perpendicular to where the line might be until you hear something. Then zero in on it by moving the blocks closer to each other. You should be able to determine where it is within a couple of inches.
 
   / Locating A water Line #18  
I do this for a living; open plastic pipe at fitting and push metal fish tape thru or as someone else said: blow line thru and pull wire (this is how electric companies do it.) Leaking locating is different, shut off all water in house and find someone who has the listening head phones...to find a water leak is a lot faster when you know where to listen at. When water under pressure passes thru a hole or crack the velocity goes to the noise leve and can be heard. Takes practice and time. equipment isn't cheap ($2,000.00+/_)
 
   / Locating A water Line #19  
With enough water usage the snow melts first where the line is and heated water is faster.:D
 
   / Locating A water Line #20  
2 peices of #6 solid bare copper wire bent in an L fashion, hold one in each hand loosely they will cross everytime you pass over the water line, mark the ground with paint everytime and you will have the path of your waterline. I have done this many times to find private waterlines so we could set a pole. Sorry didn't realize this was an 8 year old thread.
 
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