Basement Concrete Slab Removal Tips Video
Tim Carter explains several tips to help when removing concrete around a basement shower drain.
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I am a novice, but could you have poured scalding hot water down the drain, and then use the thermal image camera to see where that water is headed?
Mark,
It may work if you put hundreds of gallons of water down the drain. The pipe and trap are below the underside of the 2-inch closed-cell insulation. It would take quite a while for that heat to get through the insulation and start to heat the slab.
Tim, could you have poured boiling water down the trap and use your inferred camera to trace the line?
Doubtful. The concrete mass would take a while to heat up. You'd have to put lots of hot water down and keep doing it for a while. It's all about how long it takes the heat transfer to happen.
How about measuring the surface temperature with a temperature gun after my dishwasher or hot water laundry wash goes through? It takes that dishwasher 2 hours sometimes to run a cycle.