On 23/09/2017 15:54, Bob Minchin wrote:

I've had complete success with a PIR triggered ultrasonic scarer. I
modified it to run from a 6v dc wallwart instead of the 4 aa cells that
it was designed to use and all sealed up with neutral cure silicone
sealant.
It is located at one corner of a roughly 7m square grassed area with
flower beds on 3 sides and no sign to any cats deposits since I
installed it a couple of years back.
The garden is completely open on one side and used to be a regular short
cut for local felines, ****ting as they went but no more.

Even if you had to run several for a larger area, it would be much
cheaper than fencing.




I've got one of those with regular piles of cat **** in front of it!


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