Our SDHW system is giving blackish water from the hot tap. It settles out as a black sediment, somewhat flocculent. At its worst, the black crud smears on one's skin as if used motor oil had been applied.
The system is a drainback, about 6 years old, and our well water is very hard, so there is a water softener. I recently replaced the sac rods (magnesium), because it had been 1 1/2 years. The old sac rods were completely eroded, and the metal had been replaced by a grayish, semi-soft substance. Anyway, the new sac rods did not improve the 'black water' problem.
Can anyone recommend a cure?
The system is a drainback, about 6 years old, and our well water is very hard, so there is a water softener. I recently replaced the sac rods (magnesium), because it had been 1 1/2 years. The old sac rods were completely eroded, and the metal had been replaced by a grayish, semi-soft substance. Anyway, the new sac rods did not improve the 'black water' problem.
Can anyone recommend a cure?
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