find PEX in floor

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on using the floor heat, why worry about hitting a tube?

hot rod

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Dennis Slodysko

Find PEX in floor

I purchased a building that has PEX in the concrete floor.
I need to drill in the floor to anchor a car lift.
The system has never been hooked up.
Is there a way I can tell where the PEX is so I don't drill thru it ? I don't have away to heat the floor.

Thank You
Dennis

David Sutton_6

one way

if you could get some hot water circulating thru the system, you could wet the floor and see where it dries first,

brucewo1b

Just be sure if there is a chance it could freeze to pump in a mix of glycol, depending on how cold the slab is the water could be cold and freeze by the time you have filled a loop

Brad White_15

PEX Detection

I use a Raytek temperature gun (infra-red reading non-contact thermometer). Good tool to have and the laser aiming feature is especially fun if you have a cat you like to tease =:)

Easy to map out the high and low temperature paths, even if the slab is fairly homogenous. Also works on a variety of floor types. This is in additon to the wet slab drying technique which is by the way "photogenic" for record absent other documentation.

Just go for "center of cold".

Brad

Dennis Slodysko

PEX

I don't plan on using heat in the floor because I only use that area a couple times a week. The system has never been hooked up, just pipes coming out of the floor and I don't have anything to heat the water.I don't even have running water.

Pex Runner

Pex

Just start drilling and if you hit tubing, just move it to the side and install a compression coupler thats rated for concrete

DonNH

ultrasonics?

Seems to me that if you can't/won't run water through it, you'd need something pretty sophisticated like a fancy version of a stud finder. My guess is that there's some testing service out there who inspects concrete for density, voids, etc. for critical structures. I don't know who or where, and I expect the fees would be pretty steep.
Just my $.02

Don

doug_14

IT MAY BE POSSIBLE TO PUT A COPPER WIRE IN THE TUBING USING A SHOP VAC AND A SMALL STRING TO PULL THE WIRE IN AND THEN BE ABLE TO TO FIND IT WITH A METAL DETECTOR BEING CAREFUL TO NOT TO DETECT THE WIRE THAT MITE HAVE BEEN PUT IN THE CEMENT TO AND STRENGTH

Dennis Slodysko

PEX in floor

Someone spent a lot of money to have the PEX but in, so I'd hate to drill thru it and it would be a selling point if I ever sold it.This summer I going to run water to the building. but I need the car lift installed before that. Thanks for your ideas.

Weezbo

There are other solutions.

Compositech ...is the name of a company that has products that come to mind.

Ericjeeper

try a metal detector..

first find a metal detector.. (friend or rent one) to see if the tubing is attached to styrofoam or 6x6x10x10 wire. If there is no metal reinforment in the slab. You might get lucky and blow or suck a wad of fabric tied to the end of a piece of light guage copper wire through the tubing.. Then you could run the detector over the tubing and find out where it is..
Another option is to hire a company to come in and actually X-Ray the slab .Wish you the best in luck.