magnetic marker locater

Not my specialty, but I would suggest sending a "monitoring" pig through the system to log where it encounters any magnetic markers and then you can use that information to track any subsequent pigs.

I"m thinking of a pig that's simply like a piston (with seals so there can be no fluid bypass) so that it can measure actual displacement and data log any magnetic signatures it finds along the way.

hi there

We dont know their exact position and need something which can locate them by moving itself on the ground. We prefer not to use pigs!

Find someone that can smell for water using wires, I have found under ground pipes and tile line, It does work. Try it may even work for you. Take two wires and put a 90 bend on one end and hold loosely, hold out in front on you and walk slowly dragging you feet. when the wires cross or go out side to side you have made you find. Just try it what do you have to loose.

Ditch Witch www.ditchwitch.com to find a dealer around you. They have locator's for locating the pipe. Then they have a magnetic locater to find the magnetic stuff. They also have a locater for the splice balls if thats what you have. If you need more help you can email me at mhorn@ditchwitchofmd.com we are the dealer in Maryland. I'm sure our stuff can find it and some dealers rent if you just have one job. Hope this helps.

Matt Horn

General Manager

Ditch Witch of Maryland,Inc.

I remember reading of a manual procedure for leading a metal cable through buried pipe and using a simple detector for continuous pathway marking on the surface. The 'head' comprised a powered transmitter that allowed for continuous location.

Try looking at these: http://www.ridgid.com/Tools/FindIt-Which-Locator/index.htm

I believe that assumed a fairly flat and accessible terrain, however, and had an accuracy depending on depth and could be confused somewhat by the presence of other buried metal systems. But it may work.

How deep are the pipes buried ?

Infrared has been able to locate buried piping in / around refineries.

Depending upon fluid velocities, other ambient sounds, depth of pipe, soil conditions, sound detectors may work.

There are metal detectors that will locate up to 25 feet buried depending upon soil.

There are computerized mapping systems using metal detectors.

dear all

thank you for your useful comments!

maryko