For AquaCo’s large 20-inch Whole House replacement packs, 12–18 months is a typical service interval. The correct timing depends on your exact cartridges, household usage and water conditions. Smaller systems and individual cartridges can have different requirements, and a sediment cartridge may need attention earlier.
Use the system’s service history
Start with the installation or most recent full replacement-pack date, the system model and the cartridges fitted. If you bought a spare sediment filter because it blocked early, that does not necessarily mean the complete pack was serviced at the same time. Keep the individual cartridge change and full-pack service recorded separately.
Follow the applicable manufacturer’s service or capacity limit, whichever requires earlier attention. A “12–18 months” guide is not a promise that every cartridge will last that long in every home.
When should you check sooner?
- Reduced flow: a loading sediment cartridge may contribute, but check other plumbing causes too.
- Changed taste or odour: ask for advice rather than assuming the system is performing normally.
- Unusual sediment or supply changes: water conditions can increase the load on the first cartridge.
- Higher household demand: more water passing through the system can bring a capacity limit forward.
- An overdue or uncertain service history: identify the fitted cartridges and plan the appropriate service.
Appearance alone does not establish remaining treatment capacity. A cartridge can look acceptable while its treatment media needs replacing. Likewise, a chlorine check only measures that parameter under those conditions; it cannot verify all the other reduction claims.
Can a water bill help?
Metered consumption can help estimate water passing through the filtration point, but check the units carefully: one kilolitre is 1,000 litres. Account for any taps or irrigation that bypass the system. Do not apply a capacity figure from a different cartridge or model to your own installation.
Choose the correct cap and replacement kit
Match the cartridge dimensions, connection or cap design, and media to the installed system. AquaCo’s SuperSeal/WAWF packs and standard flat-cap packs need to be selected for the correct housing configuration. Similar names or cartridge sizes do not prove compatibility.
- SuperSeal Whole House replacement packs
- Standard-cap replacement filters
- All replacement filter options
The current Premium PFAS configuration includes ScaleStop in the sediment stage. Confirm the correct complete pack for your system rather than substituting a cartridge solely on price.
Book a service or confirm your pack
Send your model, a photograph of the housing and cartridge labels, and the date of the last full service. Our service videos can help you identify the relevant system, while AquaCo can advise on replacement compatibility and installation service. Isolate and depressurise the system as directed by the applicable instructions before opening a housing; use a qualified service provider when needed.
Contact AquaCo or call 1300 701 300. For help choosing a new system, explore Whole House Filtration.