On 8 Aug, 10:35, "Dave Liquorice" wrote:
On Wed, 08 Aug 2007 02:06:40 -0700, crazyhorse wrote:
... my current theory is that the force of tipping in heavy rain causes
the 'bucket' to bounce enough to send it back to its original condition
- thus registering two tips instead of one.

Does the unit also indicate rain rate? Such a double bounce would give a
rate off the top of the scale or at very silly numbers.


No unfortunately not, mine is only the cheap version. If I am watching
during heavy rain (not difficult over the last few months) I notice
that it is only an intermittent effect and then only seems to happen
above about 6mm/hr instantaneous rate, i.e an increment on the readout
at less than 5 minutes.

My first thought was that there was something inside the gauge (small
twig, cowardly snail, etc) which was not allowing one side to fall to
its full extent, but if that had been the case I would expect the
effect to occur in less heavy rainfall.