Free Filter Service Tool

Filter Lifespan Calculator
When to Replace Your Filter?

Enter your system details and household size to find out exactly when your water filter cartridges need replacing — and when your next service is due.

Your System Details

Your Filter Service Schedule

Recommended filter change interval
Every 12 months
Sediment pre-filter
Every 6 months
Carbon filter / membrane
Every 12 months
RO membrane
Every 2–3 years
Estimated service cost
~$150–$200

Estimates based on standard usage. Actual lifespan varies by water quality in your area, household usage and system design. When in doubt, book a service — a blocked filter provides no filtration.

Book a Service →
Filter Maintenance Guide

Why Filter Replacement Matters

A water filter that has exceeded its service life is no longer filtering your water effectively. Worse, an overloaded carbon filter can release accumulated contaminants back into your water — the opposite of what it is designed to do. Regular filter changes are not optional maintenance. They are essential to the system working as intended.

The good news is that filter replacement is straightforward and affordable. Jean-Paul from Filters For You offers annual servicing plans that handle cartridge replacement, system inspection and a fresh water quality test.

Filter Replacement Reference Guide

System TypeSediment Pre-FilterCarbon FilterRO MembranePost Filter
Under Sink (2–3 stage)6–12 months12 monthsN/A12 months
Reverse Osmosis (5 stage)6 months12 months2–3 years12 months
Reverse Osmosis (7 stage)6 months12 months2–3 years12 months
Whole House HPF-36–12 months12–18 monthsN/AN/A

Note: households on Sydney mains water should follow standard replacement schedules. Households on tank or bore water may need more frequent changes.

Signs Your Filter Needs Replacing Now

  • Reduced water flow or pressure from the filter tap
  • Change in water taste or smell
  • It has been more than 12 months since your last service
  • The filter housing appears discoloured or has visible sediment
  • Your smart monitoring system is alerting you

Book a Service with Jean-Paul

Jean-Paul Barber personally handles all filter servicing across Greater Sydney. He will replace your cartridges, inspect the system, test water quality and provide a written service record. Annual service plans available with preferred scheduling.

Book a Service — 0430 546 749

Book Your Filter Service

Jean-Paul covers all of Greater Sydney for installations and servicing. Call now or fill in the form below.

Mon–Sat 7am–6pm · Fast scheduling
Maintenance Guide Water Savings Calculator