Collecting rainwater from a tin roof in a rainwater tank can reduce reliance on mains water for the garden, laundry or toilets, which suits many Brisbane households given the summer rainfall. A good installation depends on a stable base, practical access and an overflow that copes when the tank fills. Rainwater storage suits many properties.
Concrete and plastic tanks both have their place, and the best choice depends on your roof, space and intended use. Tell us about your property, and we can help you plan a tank installation with sensible connections. Considering the plumbing connections early keeps the finished installation neat.
We supply and install rainwater tanks in a wide range of sizes and materials, placing them on prepared bases and connecting gutters and downpipes so you start collecting water quickly.
Tank Base Preparation
A level, stable base prevents tank movement, leaks and damage. We carefully prepare bases using compacted material, concrete or pavers, suited to your tank size, weight and local ground conditions.
Pump and Pressure Systems
We carefully install pumps, pressure controllers and plumbing that deliver tank water to your garden, laundry, toilets or home, ensuring steady pressure, quiet running and reliable, efficient operation for years.
Mains Water Top-Up Connections
We install reliable automatic mains top-up systems so your tank supplies water during long dry periods, keeping essential fixtures and appliances running while still using rainwater whenever it is available.
Overflow and First-Flush Diverters
We fit overflow pipes, first-flush diverters and screens that keep debris out of your tank, protect water quality and direct surplus water safely to stormwater, keeping your rainwater supply cleaner.
Tank Repairs and Plumbing Upgrades
We repair leaking fittings, replace worn pumps and upgrade pipework on existing tanks, helping your rainwater system deliver reliable supply for many more years, saving you the cost of replacement.
Tank sizing
Sizing a rainwater tank to your roof
The biggest tank that fits is not always the best choice. Matching storage to roof area, rainfall patterns and intended use gives a tank that fills and gets used.
Brisbane’s rain tends to arrive in bursts, so a tank can fill quickly in summer and sit low in the dry months. Think about how much roof drains to it, what you will use the water for and how often. A larger roof catchment fills a tank faster, while a small catchment may leave a big tank mostly empty.
As a rough guide, every square metre of roof yields about a litre of water for each millimetre of rain, so a wider catchment can justify a larger tank. It also helps to settle where the tank will stand, how the overflow will be carried away and whether a pump is needed, since these choices affect both the cost and how much of the stored water you actually use day to day.
Measure the catchment
Roof area draining to the tank decides how fast it fills, so note which downpipes will be connected.
Decide the use
Garden watering, laundry and toilet flushing each draw differently, and your planned use affects the tank size you need.
Consider the dry season
Rain can be patchy, so think about how long a full tank will last in a dry spell.
Check space and access
Measure available space, including clearance for gutters, pumps and future maintenance, before choosing a tank shape.
Tank foundations
Rainwater tank bases on reactive clay
A full tank is extremely heavy, and a base that moves or settles can crack fittings or tilt the tank. Reactive clay makes foundation planning especially important in Brisbane.
Reactive clay swells when wet and shrinks when dry, so a base needs to be level, firm and properly prepared. Concrete slabs, compacted pads and manufacturer-specified bases all have their place. Check what the tank maker requires, keep the base clear of drainage that could undermine it, and avoid siting a tank beside a slope or retaining wall without advice.
Follow the manufacturer
Tank makers specify base requirements, and ignoring them can void warranties and lead to cracked fittings or failures.
Level and compacted
An uneven or soft base can shift under a full tank, so preparation is as important as the pad itself.
Mind the slope
Tanks near embankments or retaining walls add load and need careful siting, often with professional advice.
Keep water away
Overflow and runoff should drain away from the base, since soaked ground under a slab can soften and move.
The base and overflow pipework are assessed together
Tank overflow
Where a full rainwater tank overflow should go
Once a tank is full, every extra litre has to go somewhere. A poorly placed overflow can cause erosion, soggy lawns or problems for a neighbour.
Overflow in a downpour shows why capacity must be checked
Connect to stormwater
Overflow generally needs a proper route to an approved discharge point, not a pipe ending beside the tank.
Collected roof water needs a clear path to its outlet
Size for heavy rain
The overflow pipe should handle storm flow from the roof, so ask whether its size matches the catchment.
An overflow can join a stormwater inlet like this one
Mosquito screens
Insect-proof screens on inlets and overflow outlets help keep mosquitoes from breeding in stored rainwater.
The overflow normally needs to connect to the stormwater system or another lawful discharge point, rather than simply spilling at the tank’s base. Screened outlets help keep mosquitoes out. Check the overflow capacity against the roof catchment, since a downpour can send water faster than a small pipe can carry it. Confirm requirements with Council or a qualified professional.
Why choose us
Why Choose Our Water Tank Installation Contractors in Brisbane
Water tanks help you capture rainwater and secure supply. Our team installs tanks, bases and plumbing correctly, so your system collects, stores and delivers water for your home or property.
Neat pipework and fittings make pump connections easy to service
A water tank is only as reliable as its base and connections. We help you choose the right size and style for your roof area and needs, prepare a level, stable foundation and install inlets, overflows and pumps neatly, then test the system, so you capture and store rainwater dependably and reduce your mains water use.
01
The Right Tank for Your Property
We help you choose the right size, material and style of tank for your roof area, space and water needs, so you get dependable water storage that suits your site.
02
Proper Bases and Plumbing
A tank is only as good as its base and connections. We prepare level, stable foundations and install inlets, overflows and pumps neatly to prevent leaks, movement and early failures.
03
Make the Most of Rainwater
Connected correctly, a tank can supply your garden, laundry, toilets and outdoor taps, reducing mains water use and bills while keeping your lawn and plants green through Brisbane's dry spells.
04
Tidy, Dependable Installation
We deliver and position tanks carefully and safely, connect your system, test it thoroughly and clean up thoroughly afterwards, leaving you with a reliable water supply and clear operating instructions.
