Hello, you described and did this coolly!
On water leak sensors, the contacts are untwisted. To save the sensor (not to fill it with water), I screwed ordinary wires to it. This gives me the opportunity to place the sensor where it is most convenient, and for control (water level), just bring the wires to the place where I need them. This way I control the level of drinking water in the tank…
You can also read here how I alternatively use a leak sensor, maybe someone is interested.
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