Pre-Filter Replacement & Cleaning Guide

Everything you need to know about replacing, cleaning, and maintaining your filters for optimal water quality and system performance.

Why Filter Replacement Matters

Regular filter replacement is essential to maintaining the performance and longevity of your filtration system. Whether you’re using a prefilter for your Kangen machine or another water filtration system, timely filter changes ensure that your system continues to deliver clean, high-quality water and prevents damage to the machine.

Maintains Water Quality

Over time, filters become clogged with contaminants, reducing their effectiveness. Regular replacement ensures optimal filtration so your body doesn’t have to do the work.

Prevents Damage

Clogged or worn-out filters can reduce water flow, overwork your system, and potentially damage internal components.

Ensures System Efficiency

Fresh filters help your system run efficiently, improving water flow and filtration accuracy while reducing scale buildup.

Filter Replacement Schedule

General Guidelines 

Each filter has a different lifespan, typically filtering up to 6000L, though this depends on water quality and type. Hard water and bore water may require more frequent replacement.

Filter Replacement Schedule 

• Fluoride Filter: 6000L or every 12 months
• Inline Fluoride Filter: 6000L or every 12 months
• H2 Booster: 6–12 months
• Inline H2 Booster: 6–12 months
• Bore Carbon Filter: up to 6000L or every 6–12 months
• Carbon Ultimate Filter: up to 6000L or every 6–12 months
• UltraFilter 0.01: every 3–6 months (sooner if not pre-filtered)
• Inline UltraFilter: every 3–6 months (sooner if not pre-filtered)

Important Notes 

H2 Booster & Fluoride cartridges are in prototype mode; lifespan and performance are estimates.

Filter Replacement Guide

Everything you need to know about choosing, replacing, and maintaining your filters.

What Filters Do I Need?

Choose your setup below to see the recommended filter combination:

Town Water

Recommended set:

  • Fluoride Filter
  • Carbon Ultimate Filter
  • H2 Booster (for triple systems)
  • Optional: H2 Booster add-on (for twin systems)

Tank Water

Recommended set:

  • Carbon Ultimate Filter
  • UltraFilter 0.01
  • H2 Booster (for triple systems)
  • Optional: H2 Booster add-on (for twin systems)

Bore / River Water

Recommended set:

  • Bore Carbon Filter
  • UltraFilter 0.01
  • H2 Booster (for triple systems)
  • Optional: H2 Booster add-on (for twin systems)

⚠️ Important:
A water softener is essential for bore water to prevent mineral buildup.

👉 Add a Kitchen Water Softener
👉 Add a Shower Water Softener

Travel / Caravan / RV

Recommended minimum setup:

  • Carbon Ultimate Filter
  • UltraFilter 0.01
  • Fluoride Filter or H2 Booster (based on needs)

💡 Tip:
Using a water softener is highly recommended when travelling in hard water areas.

 

H2 Booster Kits & Usage

What is an H2 Booster?

It has a mixture of minerals to help the ionizers electrolysis process that may be missing from your source water. It also adds minerals that make H2 so your overall ionizers H2 production may be increased.H2 Booster Kits enhance your water with molecular hydrogen, improving water quality and performance.

Available Kits

  • Twin Above-Sink H2 Booster Kit
  • Twin Below-Sink H2 Booster Kit

✔ Same function — only fittings differ

Important Usage Guidelines

  • Always flush before first use
  • Do not leave unused for long periods
  • Monitor closely during the first week

What’s Normal (First Week)

  • Gurgling or trapped gas
  • Slight mineral or “fishy” taste

✔ These usually settle within 7 days

How to Replace Your Filters

Undersink Systems

  1. Turn Off Water Supply: Shut off the 3-way valve and open the filter tap to release pressure and residual water.
  2. Disconnect Hoses & Remove Housing: Press the collar on inlet/outlet ports to release hoses. Place housing on a towel.
  3. Remove Filter Canisters: Use the supplied plastic spanner to loosen canisters (turn anti-clockwise), finish by hand, and place in the sink.
  4. Clean Housing: Wipe debris or buildup with a damp cloth. Avoid damaging internal parts.
  5. Install New Filters:
    • Inlet = #1, Outlet = #2
    • Use food-grade O-ring grease on black O-rings (available from Bunnings)
    • Tank/Bore: #1 = UltraFilter, #2 = Carbon Ultimate, #3 = H2 Booster
    • Town/Hard: #1 = Carbon Ultimate, #2 = Fluoride, #3 = H2 Booster
    • H2 Booster always in #3 position if triple setup
  6. Check for Leaks: Reinstall housing and hoses, turn on water supply, and inspect for leaks.
  7. Flush System: Run water through the new filters to clear air and loose particles.

Above-Sink Systems

  1. Turn Off Water Supply: Shut off the 2-way valve on the tap.
  2. Remove Filter Canisters: Use supplied black handle tool; turn lock collars anti-clockwise, remove canisters, allow water to drain.
  3. Clean Housing: Wipe any debris or buildup carefully.
  4. Install New Filters:
    • Inlet (#1) furthest from spout, Outlet (#2) closest to spout
    • Apply food-grade O-ring grease on clear O-rings
    • Align dimples on metal canisters with top hole of the plastic filter
    • Ensure metal housing is flush with seal, slide lock ring down, tighten by hand and then with tool
  5. Check for Leaks: Turn water supply on, inspect all connections.
  6. Flush System: Run water through to remove air and particles.

Maintenance & Cleaning

Signs It’s Time to Replace Your Filter

  • Decreased Water Flow: Reduced pressure or flow indicates clogging.
  • Bad Odor or Taste: Water taste or smell changes.
  • Visible Contaminants: Sediment or particles in water.

Tips for Longer Filter Life

  • Pre-filtering: Use a prefilter to remove large debris before it reaches main filters.
  • Regular Cleaning: Periodically clean filter housing.
  • Use Clean Water: Reduces strain on filters.

Cleaning the UltraFilter

The UltraFilter (#1 filter in tank & bore water setups) requires periodic cleaning every few months.

Steps:

  1. Remove UltraFilter following replacement steps.
  2. Place in a tub and shake under water, then rinse under running water.
  3. Clean filter housing with a damp cloth before reinserting.
  4. Reinstall filter following system-specific replacement instructions.

Replacement: Every 3–6 months, sooner if water quality is poor. Installing a 5-micron pleated washable filter upstream is highly recommended.

Ordering & Support

Order Replacement Filters

👉 https://prefilters.com.au/product/replacement-filters/

Need Help?

Our team is here to help:
📧 help@prefilters.com.au

Proper maintenance ensures clean water, better performance, and longer system life.