I changed something  in project because level switch in V2 idea didn't work in aplication .

Next  I will attach a  draw which shows two level sensors work status possibility and I hope that would be possible to rework project so in conclusion thist two level indicators low and hi  will give at output 0 or 1 

level factor ok but when I try simulation main goals should be:

1. pressure   (open water valve if too low + alert lamp )  use range in project ok

2. temperature (open water valve if too high + alert lamp) use range in project ok

3. level (open water valve if the level in the tank is low until water level reach second sonde + alert lamp )

4. water valve should be normally closed

5. alert lamp always if one from 1.2.3 is not in the expected range

thank you