People across Australia have always looked for ways to save water. Between summer restrictions, long dry spells, and the rising price of mains supply, rainwater tanks have become common in both rural and suburban homes. A tank on its own will capture rainwater, but without a diverter, it can collect dust and droppings from the roof, making the first rush of water very dirty.
If you are considering a rainwater diverter, it’s important to understand how it works and why a proper installation matters. Read on to learn more about harvesting rainwater and using it smartly.
How Does a Diverter Actually Work
A diverter is the part that stops the first flush from going into the tank, implying the water you store is cleaner and easier to use around the home. The principle is simple. A diverter is fitted to the downpipe. At the start of a shower, it collects the first litres of runoff in a chamber. Next, a ball or valve mechanism seals the chamber, sending the cleaner flow into the tank. Later, that dirty first flush drains away through a small release valve, usually into a garden bed or soakage pit.
This design is called a “first flush” system. It reduces the sediment load inside tanks and helps pumps and filters last longer. According to guidelines from the Australian Rainwater Tank Association, even a small diverter can significantly reduce debris.
Key Benefits of Using a Rainwater Diverter
People sometimes assume a diverter is optional, but when used, the difference is evident over time:
- You will have cleaner stored water, with less dust, residue, and organic matter in the tank.
- Gardens also benefit from rainwater, which reduces the chances of leaf mould or soil issues.
- A rainwater diverter slows down the build-up of sludge at the base of tanks.
- They are low maintenance; most diverters need only seasonal checks.
Common Errors to Avoid While Installing a Rainwater Diverter
A diverter works well only if it is sized and installed correctly. The most common errors include:
- Fitting a unit too small for the roof area causes the water to overflow before the first flush is captured.
- Placing it far from the tank makes it harder to clean.
- Forgetting to service the diverter leads to the sediment blocking the release valve and system failure.
- Letting the wastewater drain towards the house instead of the garden or the soakage pit can cause damage to the house’s footings or foundation.
Tips for Getting the Installation Right
Here are a few tips that will help you install the rainwater diverter properly and get the desired outcome without any hassle:
Calculate Your Roof Size
The larger your roof area, the more dirty water you will want to flush out before clean rainwater reaches the tank.
Select the Right Diverter
Not every model suits every rainfall zone; some are designed for high-intensity downpours.
Install It Close to the Tank
Installing it close to the tank will help you reduce water loss and make cleaning hassle-free.
Use the Diverted Water
Do not waste the diverted water. It can be used for your garden plants.
Check the Diverter Occasionally
For the diverter’s upkeep, try emptying and rinsing the chamber after autumn leaf fall or before summer storms.
The Bigger Picture
As climate variability makes rainfall less predictable, every stored litre counts! A diverter makes tanks more efficient and reduces maintenance hassles. Councils also note that diverting the dirtiest runoff lowers the impact on stormwater drains, easing pressure during heavy rain events.
Final Thoughts
You will find plenty of diverters on the market, but not all are designed for Australian conditions. Trusted local suppliers like Froggys understand the issues specific to the Australian climate. At Froggys, you will find rainwater diverters designed to suit domestic tanks that are easy to install, easy to use and maintain, and are affordable at the same time.
