They installed an actual flexible tube, just like the typical tubes for our jacks. When the water returns it makes locating the exact area of the problem easy, vs. coming back and simply seeing wet concrete again. They were using a 3/8 clear plastic tube, cut at maybe 6 inches past the concrete, so overall 9-10 inches depending on depth of hole.
yep mate just like I thought. Put a bucket underneath the tube on the floor for testing purposes. Good Idea I think.
