Water analysis

[ytbrew]

This may seem like a silly question, but, if I were to get water analysis, and I generally run my water through a filter that I brew with, should I get the analysis on pre or post filter water? Can certain assumptions be made on the effect of the filter on the unfiltered water if that is checked? Thanks.

 

[stpug]

This was just asked recently, see here:
https://www.homebrewtalk.com/showthread.php?t=529944

Short answer: post filter