Water leak sensors and automation of main water valve

[tom_l]

@Sandalman

With leak sensors you only detect a leak if it is in the neighborhood of this sensors.

There’s this stuff to cover larger areas: https://www.aliexpress.com/item/4000041803534.html

If you are into DIY it is easy enough to make your own leak sensors with ESPHome: Wifi Water Leak Detector

Though now that I have a robust Zigbee network I would just use Aqara leak sensors. There are some pretty cheap Chinese zigbee valve actuators on Aliexpres too.