David Mitchell wrote:

Not recording rainfall at all. I know it's not rained since 22 March, but my
standard gauge has recorded a little for the last 3 days.
Have experimented with trickling some water in, but nothing!
Any helpers out there who can provide a clear non-technical solution?

You need to remove the black funnel (twist it anti-clockwise) and
check that the bucket is free to tip. You should be able to easily
operate the bucket by hand and it should record .01" or 0.25 mm
(approx) for each tip.

Spider web will prevent it tipping... an open circuit microswitch, or
cable, will prevent it from recording. You should be able to jump the
microswitch with a short length of conductor to verify the location of
any open circuit.

--
John H