What should I record first?
Find the cartridge or media model, installation date, instructions and original reason for treatment. Color alone is not a reliable replacement clock for every filter, and a tank sold as low-maintenance may still need valve, media or performance checks.
What changes the recommendation?
Compare the recommended interval with actual water use, pressure drop and the target parameter. Cartridge replacement, media service and valve repair are separate tasks and should appear separately in a quote.
What should the service scope include?
Ask what will be checked before and after the work, who supplies consumables and whether sanitizing or startup flushing is required by the maker. Keep dates and results in a service log rather than relying on an unspecified lifetime claim.
Apply the correct source evidence
For a Jupiter Farms household well, use property-specific sampling. Palm Beach County well-program guidance does not supply a universal chemistry result, and a Jupiter municipal report cannot characterize a private well. See the Jupiter Farms source guide before applying a report or selecting a treatment goal.
Review EPA private-well guidance for the appropriate source boundary. Source review: October 4, 2026. This guide provides decision questions; equipment selection and any safety-related interpretation require appropriate measurements and qualified advice.