With an open loop system, what problems can be caused by poor water quality?
Poor water quality can cause serious problems in open loop systems. Your water should be tested for hardness, acidity and iron content before a heat pump is installed. Your contractor or equipment manufacturer cant ell you what quality of water is acceptable. Mineral deposits can build up inside the heat pump’s exchanger. Sometimes a periodic cleaning with a mild acid solution is all that’s needed to remove the build-up. Where well water does not meet the requirements for an open loop geothermal system, a closed loop would be used.
