Rainwater Tank Services

A rainwater tank collects runoff from roofs via gutters, filters debris, and stores water for uses like gardening, toilet flushing, or (with treatment) drinking. Systems include tanks, filters, pumps, and overflow outlets to manage water efficiently.

• Cost Savings: Reduce water bills by up to 30% by offsetting mains water use.
• Sustainability: Lower your carbon footprint and ease pressure on municipal water supplies.
• Resilience: Access water during restrictions or droughts.
• Rebates: Many regions offer financial incentives, potentially saving hundreds on installation.

Tank size depends on roof area, local rainfall, and water usage. For example:

• Small home (gardening/toilets): 2,000–5,000 liters.
• Large household (full use): 10,000–20,000 liters.
  A rule of thumb: 1 mm of rain on 1 m² of roof yields 1 liter. A 200 m² roof in a 500 mm rainfall area could collect 100,000 liters annually. Consult a supplier for a tailored assessment.

However, you can also go as big as you like depending on the land size you are working with.

Rainwater is naturally soft but may contain contaminants from roofs or air. For drinking, install first-flush diverters, fine filters, and UV or chemical treatment systems. Check local regulations, as potable use often requires council approval.

• Polyethylene: Affordable, lightweight, UV-resistant; ideal for most homes.
• Steel: Durable, fire-resistant; suits rural or large systems.
• Concrete: Long-lasting, neutral pH; often underground.
• Fiberglass: Chemical-resistant; good for harsh climates.
  Choose based on budget, climate, and aesthetic preferences.

Minimal but regular:

• Clean gutters and leaf screens every 3–6 months.
• Check first-flush diverters and filters annually.
• Inspect tanks for sludge or algae every 2–3 years; professional cleaning costs ~$100–$300.
• Service pumps as per manufacturer guidelines.

Requirements vary by region. Small tanks (<5,000 liters) often need no permit, but larger or plumbed systems may require council approval, especially for potable use or overflow connections. Check with your local authority.

Costs depend on size, material, and features:

• Small poly tank (2,000 liters): $800–$1,500 installed.
• Large steel tank (20,000 liters): $3,000–$7,000 installed.
• Add $500–$2,000 for pumps, filters, or plumbing.
  Rebates or subsidies may offset costs; check council websites.

Yes, with the right setup. A 10,000-liter tank with a pump and filters can supply toilets, laundry, and irrigation, reducing mains water use by 20–50%. For full household use (including drinking), ensure adequate capacity and treatment systems.

Overflow systems direct excess water to stormwater drains, soakage pits, or gardens. Proper setup prevents flooding and complies with local drainage laws.

Yes. Slimline tanks (200–3,000 liters) fit small spaces, and underground or under-deck options minimize visual impact. Urban homes can save 10,000–30,000 liters annually for gardening or non-potable use.

Yes, but efficiency depends on rainfall and roof size. In arid regions (<300 mm/year), larger tanks or multiple tanks maximize collection during rare rain events. Focus on high-efficiency uses like drip irrigation.

• Poly tanks: 15–25 years.
• Steel/concrete: 30–50+ years.
• Fiberglass: 20–40 years.
  Warranties typically cover 10–20 years, depending on the manufacturer.

Yes. Basic tanks have sight gauges, while advanced systems offer smart sensors or IoT apps to track levels, usage, and pump status remotely.

Absolutely. Rainwater harvesting reduces stormwater runoff, preventing erosion and waterway pollution. It also lowers energy use for municipal water treatment, cutting CO₂ emissions by ~0.5 kg per 1,000 liters saved.