Think of my map as being like the Tube map - it's not geographically accurate, but it shows what's linked to what.

Hmm, I have an idea...

Head west to Y3, turn the valve, remove the wheel. Head south to Y7, add the wheel. Go to V11 and collect the rest of the part (unless we want them to freeze). Make our way to E7 (adjusting valves as needed), make sure the north pipe is heated, and remove the wheel. Back to Y3, add the wheel. Then head to Q7 and stick the crowbar in the claws of the boxclaw.