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improper probe depth

#6
You still have the old probes with the narrow point on the end? The ones that were self contained and didn't have a separate reader? Huh

Does your probe look like the attached picture? With those old probes we measured to the tip of the drill bit.

The correct procedure for slabs on a pan is to measure the deepest part of the pan (bottom of flute) and drill to 40% at that point. If the pan were a maximum depth of 3", you'd drill 1.2" down over the deep flute.

What I like to do is find a plumber's or electrician's core and then measure right there, and place my probe about 2 feet away from the core hole. This way I know the depth of the concrete (it can vary several inches on a pan as the pan sags while placing concrete!) and I will know the location of the flutes.


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JD Grafton
Concrete Answers for Flooring Problems
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Messages In This Thread
improper probe depth - Rrozema - 02-23-2012, 01:00 PM
RE: improper probe depth - rapidrhrep - 02-23-2012, 01:51 PM
RE: improper probe depth - Rrozema - 02-23-2012, 02:22 PM
RE: improper probe depth - Rrozema - 02-28-2012, 08:44 AM
RE: improper probe depth - rapidrhrep - 03-01-2012, 07:43 AM
RE: improper probe depth - CC Solutions - 03-01-2012, 12:47 PM
RE: improper probe depth - Rubensgt40 - 03-04-2012, 03:56 PM
RE: improper probe depth - CCR - 03-09-2012, 06:14 AM
RE: improper probe depth - GP-CA - 03-23-2012, 02:24 PM
RE: improper probe depth - Ernesto - 03-23-2012, 07:51 PM
RE: improper probe depth - CC Solutions - 03-24-2012, 06:12 AM

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