Rainwater Harvesting System

How a Rainwater Harvesting System Works

A complete system involves four main parts:

1. Collection – Roof, gutters, and downpipes capture rainfall.

2. Pre-filtration – Leaf screens, rain heads, and first flush diverters keep debris and contaminants out.

3. Storage – Tanks (above ground, underground, slimline, or bladders) hold the water.

4. Supply – Gravity feed or pump systems deliver water to taps, toilets, washing machines, irrigation, or your whole home.

We don’t just install a tank — we design the entire system for maximum yield and water quality.

Choosing the Right Tank

Your tank choice depends on space, budget, and water needs. We install:

• Round above-ground tanks – most cost-effective per litre.

• Slimline tanks – ideal for narrow spaces or along fences.

• Underground tanks – perfect for saving yard space.

• Bladder tanks – fit under decks or subfloor areas.

Tank sizing example for a 4-person household:

• Garden + toilet: 2,000–3,000L

• Garden + toilet + laundry: 3,000–5,000L

• Whole house: 5,000–20,000L

We’ll calculate your ideal tank size based on roof area, rainfall patterns, and usage.

Keeping Your Water Clean

Water quality matters — especially if you’re using it indoors.
We use proven filtration and protection methods:

• Leaf-shedding rain heads to keep out debris

• First flush diverters to remove dust and contaminants from initial rainfall

• Mosquito-proof inlets & overflow screens

• Sediment & carbon filters for indoor water use

• Disinfection options (UV or chlorine) for drinking water

Gravity Feed vs Pump Systems

• Gravity Feed – Low-maintenance, silent, and power-free if the tank is elevated.

• Pump Systems – Deliver water at mains pressure for showers, appliances, and irrigation.

We’ll recommend the most energy-efficient setup for your home, including mains switch-over devices for backup supply.

Rebates & Regulations

In some parts of Australia, installing a rainwater harvesting system is mandatory for new builds or major renovations. Government rebates may also apply. We’ll guide you through:

• Local council requirements

• Plumbing Code of Australia compliance

• Applying for available rebates before installation

Maintenance & Longevity

Like any system, regular maintenance keeps your water safe and your system running smoothly.
We offer scheduled servicing that includes:

• Monthly: Check screens, diverters, and filters

• Annual: Clean gutters, replace filters, trim overhanging branches

• Every 3–5 years: Tank desludging

A well-maintained system can last decades and deliver consistently clean water.