When it comes to pool leak detection, having the right equipment can make all the difference. Throughout the years Campbell & Sons found the best process, bar none, is our Full Leak Detection. Every nook and cranny of the entire structure is accounted for and every plumbing line is pressure tested to ensure its integrity. We use one of the premier instruments for pool leak in the world. The Model LD-12 Subsurface Leak Detection. Easy-to-use water leak detector optimized for ground “miking” on streets & concrete slabs. The LD-12 water leak detector is a very easy-to-use detector, featuring six filters that allow the unit to screen outside noise and zero in on water leaks. The LD-12 is a must for every water utility as it’s the professional’s water leak detector.