ok marco i updated my design to take the error i made in account
Top relay is relay 1 and bottom relay is relay 2.
relay 1 is always open (current doesn't flow) until water level goes over the lines.
relay 2 is always open (current doesn't flow) until water level goes under the lines.
The switch is used to control the current for the pump.
I think it would be called a relay but i'm not sure.
There would be 2 sides of it and the latch inside would move depending on the magnetic field which relay 1 or 2 will generate.
It functions is this: when current flow trought relay 1, it moves the latch away from the connectors so cut the current to the pump. When current flow trought relay 2 it moves the latch to the connectors and will enable current to flow trought the pump.
Now the trick to this is the latch need to move only when a relay is closed and doesn't move when the relay opens. Much like a wall switch but activated by the relay.
I will try to find relay that does it.
the drawing is not perfect. i will try to do an exact drawing when i find the exact relay to do the function of the switch
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