I originally started looking at the my water pipes because drinking my tap water gives a burning / dry sensation in my mouth and stomach.
My copper water pipe looks corroded / affected and has probably leaked some water on the tube from the neighbors.
I was wondering if anyone spotted something weird on the pictures or has heard of this problem before.
I've tried having all the taps open for 1+ hour, which doesn't change anything. I have called a couple of companies, but they told me they can only try to test the water for a lot of money and maybe get a result out of that so they can fix the problem by chemically cleaning the tubes for more money.
Any help is very much appreciated.