I've been converting the gravity HW system over to pumped. Not been a difficult job, but awkward at times. And of course it sprouted extra tasks like a new feed and expansion tank (Polyred packaged tank - handy bit of kit) and a new incoming mains stopcock.
Finaly get it refilled and ready get it going again and the bloody boiler (which was fine 2 weeks ago) decides not to fire up (sparking, but not lighting) :-(
Oh well it's a nice simple Ideal Mexico, so hopefully all it wants is a bit of a clean or something )