Flushed ecosmart27 to descale it. After 30 min the vinegar was blue (normal, I should've stopped here). After 90 min the solution was clearer but the bucket was covered in grimy, grey, greasy coating (see pic). Dry, it's grey soot that smells metallic.
Any ideas to clean this stuff out of heater now? How would you service it?
Any idea what went wrong to cause this?
Any ideas to clean this stuff out of heater now? How would you service it?
Any idea what went wrong to cause this?
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