On 26/05/2020 09:18, Caecilius wrote:
On Mon, 25 May 2020 20:17:04 +0100, williamwright
wrote:

On 25/05/2020 17:42, Caecilius wrote:

Any ideas on what could be causing this?

Gravitational anomaly.

I was suspecting that my spirit level might have gone out of spec and
needed recalibration.


Easily checked by rotating ends and see if bubble is in same postion.