Dave Fawthrop wrote:

| It uses a conventional controller with pump but could be switched to
| manual in the case of another "Winter of Discontent"
|
| Please explain?

Maybe you are too young to remember the "winter of discontent" when we had
long power cuts c1976.
Too much effort to explain as the whole lot is for the bin.

I think he ment please explain how it worked in "manual mode" rather
than the winter fo discontent.... then again maybe he is younger than we
thought ;-)

--
Cheers,

John.

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