Maintenance Guide

Your PureFlow system is designed to be looked after by you. Replacing the cartridges is a straightforward job, and most customers do it themselves. If you’d rather we handled it, we can do that too.

How often filters need replacing

Generally every 6 to 12 months, depending on which system you have and how much water your household gets through. A bigger household, or a home running on tank water, will usually get through filters faster than a smaller one. We'll tell you what to expect for your setup, and we'll send you a reminder when you're due, so it's not something you need to keep track of.

If you need to purchase a replacement filter, you can do it through the link below.

whole house water filter stages

Replacing your cartridges

It's a quick job. Before you start:

  • Turn off the water supply to the system and open a tap downstream to release the pressure. Don't open a housing while the system is still under pressure.
  • Have your replacement cartridges ready. Use genuine PureFlow cartridges. They're matched to your system, and other brands can affect performance or how your warranty applies.
  • Take note of which cartridge sits where. The stages go in a specific order, and they're not interchangeable.
  • Flush the system afterwards. Run the water through for a few minutes before drinking. It's normal for the water to look cloudy or for a tap to sputter at first, that's just trapped air working its way out.

If anything doesn't look right when you open it up, stop and give us a call.

What each system needs

Whole-house filter. Four cartridges handling sediment, chlorine, metals and scale. These are the ones most customers replace themselves.

Reverse osmosis. The filter stages and the membrane. The membrane usually lasts longer than the pre-filters.

Rainwater UV system. The sediment cartridges, plus the UV lamp. The UV unit has a built-in timer and alarm to tell you when the lamp is nearing the end of its life. UV lamps and quartz sleeves need care when handling, so if you’re at all unsure about this one, let us do it.

Prefer us to do it?

Not everyone wants to be under the sink on a Saturday, and that's fine. We're happy to come out and take care of the replacement for you. Same team, same day if we can. Just get in touch through the form below.

Buying replacement cartridges

Use genuine PureFlow cartridges so you know they fit and perform the way the system was designed to. Get in touch and we'll sort you out with the right ones for your setup.

Warranty

Every system we install comes with a full warranty. The whole-house units carry a 2-year product warranty and a 7-year workmanship warranty. Replacing your own cartridges the normal way won't affect that. If you're planning to change anything about the system itself, check with us first.

Booking a service

Due for a filter change, need cartridges, or want us to take a look at something? Fill in the form below and we'll sort out a time. You'll be dealing with a local Melbourne team, the same people who installed your system.

Book your FREE water quality test today! And one of our friendly filtration experts will be in-touch.