System Maintenance
A well-maintained system keeps performing as tested. A neglected one can perform worse than having no treatment at all.
Short answer: Keep a simple log of every filter change, softener salt refill, and system inspection, and follow manufacturer schedules rather than waiting for a visible problem.
General maintenance checklist
- Track filter and cartridge replacement dates against manufacturer schedules (see Filter Replacement)
- Check softener salt levels regularly and refill before the tank runs empty
- Inspect for leaks, unusual noises, or reduced flow
- Sanitize or clean components per manufacturer guidance
- Retest water periodically to confirm the system is performing as expected
- Keep manufacturer documentation and warranty information accessible
Why maintenance matters
An expired filter or empty brine tank doesn't just stop helping — in some cases, a neglected system can perform worse than no treatment, for example if bacteria grow in a stagnant filter housing. Treat maintenance as part of the system's actual cost, not an optional extra.
Common mistakes
- Treating installation as a one-time task with no ongoing responsibility
- Not retesting water after installation to confirm performance
- Losing track of replacement dates across multiple systems in the same home
Official sources
- Manufacturer maintenance documentation for your specific system
- NSF/ANSI certification documentation
Related
How often should I retest my water after installing treatment?
There's no single universal interval — check manufacturer guidance for your system and consider retesting periodically, especially after any repair or extended period of use.
Does not endorse a specific manufacturer or product claim.
Last reviewed: 2026-07-11. Report a correction.