[photo1902]

Originally Posted by jimbo2012

It's NOT based on time it's 26,000 gallons, so 9 months in age is not an indicator it's your water bills please see what you use on average per month.

the reason the filters may look clean to the naked eye is because anything less than 15 microns can't be seen with our eyes, however, the first filter always shows dirt in 26,000 gallons.

Well aware of what my potable usage is. We hit the 26k mark, which happened to be around the 9 month time frame.

And of course I'm basing what I see on the naked eye. Maybe where I live is blessed with cleaner than "average" water.