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Lately there seem to be floating tiny droplets (oil?) on the surface of tap water. This is limited to hot water, and does not affect other tenants in the building.

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The water heater has just been replaced to try and address this issue to no avail.

What may be going on, and how can I troubleshoot it?

  • Some analysis of what kind of "oil" this is may help track down where it's coming from. I think it's odd that you just threw a new water heater at this. I cannot imagine how/why a water heater would produce oil. Are there any pumps involved here? Like a hot water circulating pump? That could leak oil if it's failing. – jwh20 Dec 20 '21 at 14:27
  • @jwh20 Thanks much for your comment. I'll look into it. – Antoni Parellada Dec 20 '21 at 17:27

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