I have a DS-1800 Ultimate Dispenser Filtration System made by Pur Water and I have no idea how to tell when the filter is in need of changing. Please let me know!!!I need to know when to change the filter on my Pur Water Filter?my guess is every 6 months:
http://www.waterfilterfinder.com/ds-1800
hopes this helps!I need to know when to change the filter on my Pur Water Filter?Most filters need to be changed quarterly for optimum effectiveness.