I found adaptors at:
http://www.heating-parts.co.uk/ProductByGroup.asp?PrGrp=69
and
http://www.bes.co.uk/products/105.asp
but haven't decided what I need as they don't give sizes!
I presume the Cadet has 1 1/2" ports but haven't confirmed this - another trip under the floor!
Hi!
I've just been going through a similar exercise: pump hasn't packed in as yet but not getting a lot of heat upstairs. Went under the floor to adjust the speed control - just keeps turning and no improvement. So, having recently drained/flushed the system to no avail, a new pump! Went...