I want to design a system that automatically turns off a water pump when the water tank is full.
Some background and details:
1- The pump is connected to main water supply.
2- The pump should turn on with a switch (manual input) and it should stop when water tank overflows.
3- It should not turn on automatically as the water level goes down.
4- The main water supply is irregular. Therefore, I prefer to have a manual turn on.
Can some one please suggest a circuit/design to achieve this?
Best Answer
What you ask is out there, in the form of residential effluence treatment (septic).
It utilizes float switches and a small analog or digital controller that automates exactly what your looking for.
Research "septic pump tank design". You're looking for a system with 3 or 4 float switches installed. Parts for these systems are available all over the world.