Free homeowner tool

Never forget a filter change again.

Pick your system, install date, and household size. We generate a 24-month calendar and download it as a single .ics file you can drop into Apple Calendar, Google Calendar, or Outlook.

System type

Install date

Household size

5+ people shortens carbon and sediment cadences by ~25% per NSF draw-rate guidance.

Upcoming changes — next 24 months

Cadence sources: NSF International POU/POE guidance, Water Quality Association (WQA) consumer fact sheets. Shorten the cadence if your water tests heavier than average.

Pre-sediment filter
Industry range: 6 months (NSF POU RO guidance)
Fri, Feb 19, 2027
Pre-carbon filter
Industry range: 6 months (NSF POU RO guidance)
Fri, Feb 19, 2027
Pre-sediment filter
Industry range: 6 months (NSF POU RO guidance)
Thu, Aug 19, 2027
Pre-carbon filter
Industry range: 6 months (NSF POU RO guidance)
Thu, Aug 19, 2027
Post-carbon polishing filter
Industry range: 12 months (NSF POU RO guidance)
Thu, Aug 19, 2027
Pre-sediment filter
Industry range: 6 months (NSF POU RO guidance)
Sat, Feb 19, 2028
Pre-carbon filter
Industry range: 6 months (NSF POU RO guidance)
Sat, Feb 19, 2028
Pre-sediment filter
Industry range: 6 months (NSF POU RO guidance)
Sat, Aug 19, 2028
Pre-carbon filter
Industry range: 6 months (NSF POU RO guidance)
Sat, Aug 19, 2028
Post-carbon polishing filter
Industry range: 12 months (NSF POU RO guidance)
Sat, Aug 19, 2028
RO membrane
Industry range: 24 months (sooner if TDS climbs above 10%) (WQA RO membrane bulletin)
Sat, Aug 19, 2028

Opens in Apple Calendar, Google Calendar, or Outlook. Each event fires a reminder one week before the change.

Sourced from NSF and WQA — not from us.

Cadences are the published industry recommendations from NSF International and the Water Quality Association. Heavy iron, heavy chlorine, or 5+ people in the home all shorten the interval — the tool accounts for household size, but a real in-home test is the only way to size your actual cadence.

Want a written maintenance plan with the cartridges already lined up? Call us.

Call (251) 292-3888

Ready for a system that handles itself?

Send your ZIP and current setup. We'll quote a low-maintenance replacement.

Prefer to call?

Skip the form — we can set up the free water test on the phone.

Call (251) 292-3888

Never forget a filter change again.

Filter change schedule tool

Upcoming changes — next 24 months

Sourced from NSF and WQA — not from us.

Ready for a system that handles itself?

Prefer to call?

Never forget a filter change again.

Filter change schedule tool

Upcoming changes — next 24 months

Sourced from NSF and WQA — not from us.

Ready for a system that handles itself?

Prefer to call?