We just bought a house and today when I turned on the cold water tap in the sink, a whole bunch of brown water came out, and then a bunch of small brownish-gray things that were kind of sticky. I had to use soap to get them to wash out of the sink and if you pushed on one, it would smear, like ash or something. Then the water ran clear and everything was fine.
Any idea what this could be? We are on city water.
Thanks!