They do NOT remove the mineral, but rather polarize the molecules thus causing less scale and the other problems. The effects of magnets do not last very long, so it is best to install them very close to where the water will be used. They are very inexpensive, do not cost anything to run, do not impair your water flow, and last indefinitely. The Multi-Soft RV 2000 magnets are super-strong ceramic magnets. For "average" hard water, we recommend installing one RV 2000 magnet set on the incoming water line and one more on the water heater outlet. In areas with very hard water (AZ, TX, and FL), install two sets of magnets on the incoming water line and one on the water heater outlet. You'll be amazed at how well they work.
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