Hnnggg why does it take ages to wait for the tap water to turn cold (warm water immediately available though) (actually make that scalding hot, Iceland does not believe in safety measures such as having a max temperature for tap water) (other than boiling, methinks)...
Haha, this worked: I let the water run and wrote this comment, went back and it had cooled somewhere just beyond lukewarm. It's not what I wanted but it will have to do, the need for coffee is too strong.