
Rainwater Tank Filter Installation Sydney - Tank And Bore Water Filtered
On tank or bore water and seeing dirt in the glass, a taste, or a filter that has started to leak? Our licensed plumbers fit filter housings after your pump, with isolation valves and a bypass, and agree the price before any work starts.
- $0 call-out fee*No charge just to come and look
- Fixed Price QuotesUpfront pricing before work starts
- Aussie owned & operatedFamily-owned in Sydney since 2010
- Lifetime guaranteeIf our work fails, we fix it
Free quotes · Licensed & insured · Lic #306457C
*No call-out fee during business hours, Monday to Friday 7am to 4pm. Mr Splash VIP lifetime members pay no call-out fee at any time. After-hours and weekend call-outs may attract a fee at our discretion, and we will always confirm it with you before we attend.
Get a Free Online Quote
60 seconds · no obligation
Pick your setup
What do you want from your tank water?

Filters On Tank Water
Filter housings on the line from your rainwater tank, so the water going into the house has been through them first.
Get a fixed price
Sediment Then Carbon
A sediment cartridge catches the dirt first, then carbon reduces the taste, smell and colour.
Get a fixed price
New Pipework From The Tank
Old or leaking pipe from the tank replaced with new copper, run to the filter and on to the house.
Get a fixed priceSupplied and installed
Fitted after the pump, so the whole house gets it
- On the pressure side of the pump, so a blocked cartridge cannot starve it
- Isolation valves and a bypass, so the house keeps water during a cartridge change
- Mounted on a wall or a post with room to change the cartridges
- One fixed price before we start, with 0% interest payment plans


Tank water
What Does a Rainwater Tank Filter Do?
Looked after
Tank filters work harder than mains filters
Tank water carries more grit, so some makers set a cartridge change every 6 months. We set the schedule when we fit it, and we can come back to change them.

Video Testimonials
Why Sydney homes pick Mr Splash
Straight answers, fixed prices, work that lasts

How it goes in
Three steps, one visit



Honest answers
Read this before you buy a filter
Straight answers to the questions Sydney homeowners ask us, reviewed by our licensed plumbers.
Is Sydney Tap Water Safe to Drink? What the Tests Actually Show
Yes, it meets the national guidelinesPFAS in Sydney Water: Which PFAS Water Filter Actually Removes It
Under-sink RO, not whole houseChloramine in Sydney Water: Do You Need a Chloramine Filter?
Catalytic carbon, certifiedDoes a Water Filter Remove Fluoride? Which Fluoride Filter Works
Standard carbon filters: noWhole House Water Filter Cost in Sydney: What Drives the Price
What drives the price, and the yearly running costWhole House or Under Sink Water Filter: Which Do You Need?
Match the filter to the problemWhole House Water Filter Disadvantages: The Honest List
Upkeep is the big oneDo You Need a Water Softener in Sydney? The Honest Answer
Usually not: Sydney water is softHow Often to Change Water Filter Cartridges: What the Makers Say
Every 6 to 12 months for most cartridgesWaterMark Certification for Water Filters: Why a Licensed Plumber Matters
WaterMark first, then a licensed plumberRainwater Filter for Drinking Water: Is Tank Water Safe to Drink?
It can be, if the tank is looked afterFilter Tap vs Under-Sink Water Filter: Which Suits Your Kitchen?
They usually work togetherOnly want filtered water at the kitchen tap? See under-sink filters and filter taps.
Straight answers
Before you book
How much does a rainwater tank filter cost?
It depends on how many filter stages you need, whether the pipe from the tank needs replacing, and whether a pressure limiting valve and a bypass go in. It also depends on whether we supply the filter or you have bought one. You get one fixed price before any work starts, there is nothing to pay just for us to come and look during business hours, and our guide Whole House Water Filter Cost in Sydney explains what drives the price.
What filter do I need for rainwater tank water?
For dirt, taste and smell, the usual setup is a sediment cartridge followed by carbon, fitted after the pump. Carbon does not remove bacteria or viruses, so if the tank is your drinking water, read our guide Rainwater Filter for Drinking Water for what NSW Health advises. On mains water instead? Our whole house water filters and water filter installation pages cover those setups.
Do I need a UV filter on my rainwater tank?
Only if you want the water disinfected on its way to the tap. NSW Health's rainwater treatment fact sheet says carbon will not remove bacteria or viruses and a sediment cartridge will not remove viruses, while UV is effective against most bacteria, viruses and protozoa on clear water. UV needs power and filters ahead of it, and it does not remove chemicals. NSW Health also says a well-maintained tank can provide good-quality drinking water, and recommends town water for drinking where you have it.
Does a tank filter go before or after the pump?
After the pump, on the pressure side. A blocked cartridge before the pump can starve it of water, so the filter goes on the line between the pump and the house, with valves either side so it can be isolated.
How often do tank water filter cartridges need changing?
On the maker's schedule, which for most sediment and carbon cartridges is every 6 to 12 months, and as often as every 6 months on some tank water systems. Rainwater clogs filters quickly, and a cartridge left too long can trap sludge and slime that a change in pressure flushes back into the water, so write the date on the housing. Our guide How Often to Change Water Filter Cartridges lists the makers' intervals.
Can you fit a filter on bore water?
Yes. Where a bore supply feeds the house, the filter housings go on the line after the pump in the same way as on a tank. NSW Health says bore water should be tested at a laboratory before use, and sediment and carbon filters do not remove every chemical a bore can carry, so have the water tested first and choose the filter to suit the result. We fit the filtration; we do not drill or treat bores.
Do I need a plumber to install a rainwater filter?
Yes, if it connects to the water line. In NSW, fitting anything that treats your water is plumbing work, and filters must be WaterMark certified and installed by a licensed plumber. Changing a cartridge afterwards is often a job you can do yourself. Our guide WaterMark Certification for Water Filters explains what to check before you buy.
Do you fix rainwater tank pumps too?
Yes. Pumps, rain to mains switches and leaking tank fittings are covered on our rainwater tank and pump repairs page, and a pump fault can be looked at in the same visit as the filter.
Filtered Tank Water, Fitted Properly.
Get a Free Tank Filter Quote
60 seconds · no obligation
Licensed & insured · Lic #306457C · Family-owned since 2010



