A question….it looks like I have a leak within the upstairs subfloor related to an upstairs bathroom. I drilled a small 1/4 inch hole in the first floor sealing right below the bathtub ( and near a stain that appeared). Since I can’t get under the bathtub it looks like the
only way to find the problem is to
cut a hole in the first floor ceiling drywall. Any suggestions on how to minimize the ceiling repair and increase the odds of finding the leak with the smallest hole possible?
Thanks.