Maintaining thorough records of your PFAS water filtration system protects your investment, supports warranty claims, enables trend analysis of water quality, and provides important information when selling your home. Good documentation practices are simple to establish and maintain.
Installation Records
Record the date of installation, the specific product models and serial numbers of all system components, the initial water test results that justified your filter selection, and the installation method (DIY or professional contractor with contact information). Photograph the installed system before closing the cabinet, showing all connections and component positions. Keep these records with your home maintenance files.
Maintenance and Replacement Log
Create a simple log of every filter cartridge or membrane replacement: date, component replaced, cumulative water volume if tracked by a meter, and the brand and model of the replacement cartridge. This log confirms your filter is receiving appropriate maintenance — useful for warranty claims if a system malfunction occurs, and for assessing whether your replacement interval is appropriately matched to your water usage.
Water Testing Results
File all water quality test results in date order, noting the laboratory used, the PFAS compounds tested, concentrations detected, and whether the test was for source water or post-filter water. A multi-year record of water quality data reveals trends — rising contamination, filter performance changes, or seasonal variation patterns — that a single test snapshot cannot show. This record becomes part of your home’s environmental history, valuable when selling the property or pursuing any contamination-related claims.