regarding fixed co2 system.

dear sir,

1. weight and pressure of pilot bottles.?
2. how we came to know that after 2 minutes of operating system 85 % co2 has released.?
3. if their is a hole in co2 line before and we are not able to open mechanism of all cylinders for releasing co2 , then how we will operate system.?

kinldy answer all thses questions.

thank you