I have designed a circuit for water pump. Please correct me if I am wrong with schematics. The idea is to to switch on/off AC motor pump with 230V and 7.5A, when water is detected.
I have used opto-isolator MOC3063M and triac BT137.
I have four questions:
P.S. Water detector is nothing but plate with two conductors to detect water presence.
Additional: Yes you are right 1.5V is too small, because of voltage drops of led D1 and the led in MOC3063. I consider to use 6V DC power source.