So we've got a local company coming in in a few weeks to concrete our pool area. We've just spent the last couple weekends pulling up all the old pavers around the pool (and the outdoor rugs surrounding everything else -- thanks prior owners.) We're currently a bit hung up though on trying to locate and mark all the plumbing lines (the company wants us to have all these marked out ahead of time so they can make sure to hand dig around them.) Does anyone have any suggestions on how we can find these? We've taken the dousing rods to the area and we think we have a rough idea, but we spent a couple hours digging today and had little to show for our efforts. In talking to the neighbors (who have been very helpful thus far with many inquiries we have about the house) we've learned that, while they don't know the plumbing layout, the do know that the pipes were all buried at least 3 feet down or so, so digging holes around to try and follow these is proving a pain in the butt -- I don't even know if this is going to be an issue anyways in the work being done, but we don't want to take any chances if we don't have to.
Any suggestions? We'll try just about anything to try and locate these things so we can mark them (if you tell me you've had luck on your hands and knees with a stethoscope, I'll try it!) A guy from the concrete company is going to be stopping by at some point tomorrow with his own equipment that uses magnetism or something to trace our electrical lines for us (he used to have the component that does the water so he could track piping as well, but apparently it was broken at a site and he hasn't replaced it yet.)