So I have a Rancilio Epoco, and moved here to Maine.. Sea Level. Do I need to adjust my pressurestat? Currently have it to set to where I was over a mile high (stop a .9 BAR).

So if anyone has any help that would be swell.

Ditch the pressurestat. That thing will cause you big headaches! I know, I trashed mine not too long ago

See this thread:
Rancilio Epoca E1 - diagnosing why it won't heat up

Long story short, go with the thermosistor and re-calibrate your machine:
http://www.espressoparts.com/rancilio-e ... -6-10-days

The kit shown above, is cheaper than sourcing the two parts you need.

As you can tell from my other thread, not much love for the Epoca machines :(