Is it possible that water in Germany makes me breakout?

Recently I moved back to Germany and since then I've been struggling with really oily skin and some breakouts, not only on my face but the back and the chest too. Ive been away from Germany for 2 years and in that period my skin has been mostly clear and not even close to this oily.

So I was thinking is it possible that the water is making me breakout and making my skin oily??

If so is there anything that can help skincare wise or even a water filter??

I would be really thankful if somebody has any solution or has experienced anything similar