What happened to this pot I just bought a new cheap pot.  Put some water in it, boiled it and noticed the pot up to its water level turned dark.  I was thinking maybe the metal coating was peeling off and leaking into the water.
Boiled a second pot of water then poured it into a glass and the water looks clear as you can see in picture.
What happened to the pot and if I continue cooking with it will the water become contaminated?  The upper part of the pot is still clear silver if the water level goes higher might it cause something to leech in?
Not using the pot now but hope I can.
Thanks.
Best guess without knowing your water supply composition; it's not the pan contaminating the water, it's the water contaminating the pan.
Iif you live in an area with certified potable water, it's really mainly visual, it won't hurt.
After comments
Yup, London water - safe, potable… but ugly.
You can either

scrub after every use, or
ignore until it annoys you enough to do a full descale
Buy a Brita jug &amp; never boil unfiltered water.

It is completely harmless, just unsightly.