Add to HA, and set 'area' or 'label' to the same as all your other leak sensors. Use the area or label in your automation.
I find HA joyously easy to use. I have my garage door, lights all around the house, thermostats, hot water recirculation system, doorbell, lutron blinds, and ceiling fans. The automations are easy to make, and have been getting easier over the last few years with HA improvements. (and same as others in this discussion, I use zigbee smart switches. The GE brand ones are great).
I find HA joyously easy to use. I have my garage door, lights all around the house, thermostats, hot water recirculation system, doorbell, lutron blinds, and ceiling fans. The automations are easy to make, and have been getting easier over the last few years with HA improvements. (and same as others in this discussion, I use zigbee smart switches. The GE brand ones are great).