2 ms·

No metals, this was white fluffy stuff floating in the water. And it was relatively a luxury apartment. Again this was 1977 so that's almost ancient history.

• hn2019 5y ago
  It was probably (hopefully?) just water scale from hard water building up mineral deposits on the insides of the pipes.
• drra 5y ago
  Common for apartments or houses that have been used for a while. Would be enough to let the water flow for a while.