On 16/11/2017 23:16, Bert Coules wrote:
John Rumm wrote:

You might only get deflection of the tongue when there is force
applied...

Yes, thanks, that's the first thing to try tomorrow, I think. Though a
slightly half-hearted bit of foot-pressure on the exposed UFH system
(I'm still a bit wary of damaging those pipes) didn't move it downwards
at all, so quite where the plank went to when it moved remains a bit of
a mystery. Perhaps I just need to be bolder.

Chances are there is a dip either visible at the top of the UFH panels,
or under them such that they can push down a bit when loaded.


--
Cheers,

John.

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