Water system monitoring

Hi All,
This is regarding the water ststwm qualificaion, we have completed Phase III two years back, we want th reduce the frequency of testing of BET, Can anybody suggest the mechanism to reduc it, any guideline or document

Anil

here i have completed DQ , IQ, OQ for water qualification…but now i am starting PQ which includes 3 phases …DO you quide me how ca i start phase i…if you have any format can you please provide me …?

I will try to post in PQ validation of water systems soon in the Validation template. I will post that on or before evening 6th February 2011.

I posted this today.
Have a look. It is ready to use and very easy to understand.

http://www.askaboutvalidation.com/forum/showthread.php?4367-PQ-Purified-water-system