One of my customers has an indoor swimming pool. The copper pipes in the pool are being eaten away to the point of failure. Sacrificial copper pieces were placed in the pool and have also corroded. This pool is not plumbed to the house water system. The pool is filled from well system and uses bromine as the base chemical.
All metal parts are grounded and no potential can be measured between any two different metal surfaces. However, there is a +0.5VDC potential between the water surface and the ground grid. It appears that this pool has become a battery.
Any suggestions?
