I am looking for a simple mechanical device that I can install in the supply line for the fridge-water-filter and that will turn of the water if it ever runs for more than a minute. (Most fridges turn off the water themselves after about a minute, so if the water runs longer, there is a leak.)
I am assuming a device like this would be simple to build, yet I have been unable to find one for purchase. Does something like that exist?
I would prefer a mechanical solution, but an electronic one would work too. However, I don't want the system to rely on some form of humidity detection, as that does not reliably work with a fridge (I just had a fridge completely fill with water before it started leaking.)