PLC project

Hi
actually i am trying to build a project using PLC to controlling the water level in a tank using 3 level sensor and water pump and i dont know where should i start could you please help me

Hi,
Welcome to the forum!
There is nothing wrong with saying this is a student exercise if this is one.
Where you start is a list of the details.
1. Each sensor would be an input.
2. The water pump would be an output.
3. List the exact make and model PLC and software you will be using.
4. If you dont have a PLC and software, go to thelearningpit.com and download the free trial simulator to practice on.
5. Post your attempts to write the program, we will be glad to help with improvements or corrections.

Thank you Very much for your replay
currently i am trying to choise a level sensor and water pump
i have Allen & Bradley PLC and RSMicrologix 500
what is the best sensor and water pump for a kind of project
also i found a design which look exaclly to what i am trying to built
http://www.langlois-france.com/pdf/REGULEAU-GB.pdf