Water system validation

Dear all,

I have some doubts on water system

What is difference between phase 1 and 2

How to know how many days phase 1 and phase 2 (any reason to selection of number of days)

Any gap Between phase 1 and 2 (because Mlt analysis takes 6 days) or continuously perform phase 2 after phase 1

Any gap Between phase 2 and 3 (because Mlt analysis takes 6 days) or continuously perform phase 3 after phase 2

Where is alert and action limit establish (phase 1 or 2 or 3)

Can we use produced water from water system After phase 1 (phase 2 analysis is running)

If we establish alert and action limits in phase 2 any deviation occur (cross the alert and action different seasons) in the phase 3 how we explain that one.

If any deviation occur after phase 3 in alert and action limits any changes required in alert and action limits

How to establish sanitization frequency.

if you don’t mind
please provide answers with reference or reference links

Thanks & Best Regards,

Manohar. K