Pre-filter performance and required cleaning frequency will depend on water quality at the point of use. Pre-filters that visibly stain or collect debris can be a desirable indicator of water quality improvement for the end user (“If my pre-filter is dirty, it must be removing bad things from my drinking water.”). Where the source water is not turbid, the pre-filter staining may be the only indicator of water quality improvement outside of taste and/or smell.
|