When it comes to combining sustainability, style, and smart savings, few products hit the mark like the Caroma dual flush toilet. These innovative water conserving toilets not only look sharp but are engineered to use significantly less water—protecting the planet and your wallet. In this detailed guide, you'll learn how Caroma dual flush toilets work, their top eco advantages, product choices, installation tips, and why this brand remains a global leader.
The Dual-Flush Difference
In 1980, Caroma engineers introduced the world’s first practical two-button flush toilet. This changed bathroom water usage forever. Unlike traditional one-flush systems, the dual flush toilet allows users to select between two flush volumes:
- Half flush (~0.8 gallons / 3 liters): Ideal for liquid waste.
- Full flush (~1.28 gallons / 4.8 liters): Designed for solid waste.
This approach makes sense. Most people use the toilet for liquid waste 70–80% of the time. A smaller flush avoids wasting unnecessary water. Multiply this by each household member and daily usage, and the savings quickly add up.
By choosing Caroma, you're not just installing a toilet—you're installing a smarter habit that reduces your water footprint dramatically. Dual flush toilets can reduce overall toilet water use by 50% or more compared to older 3.5 gallon tanks. That can equate to thousands of gallons—and dollars—saved every year.
Real Eco and Financial Impact
Let’s break down the numbers. A standard older toilet uses 3.5 gallons per flush. The average person flushes five times per day. That’s 17.5 gallons daily—or 6,388 gallons per year.
By switching to a Caroma dual flush toilet, a person might use just 0.8 gallons four times and 1.28 gallons once per day:
- (0.8 x 4) + (1.28 x 1) = 4.48 gallons per day
- 4.48 x 365 = 1,635.2 gallons per year
That’s a savings of 4,752.8 gallons per person per year! In a household of four, that’s 19,011 gallons saved annually. Water rates vary, but most households see a noticeable dip in their utility bills—especially in areas with water use penalties or seasonal surcharges.
Many cities and utility companies offer rebates for WaterSense-rated toilets like Caroma’s. When combined with lower monthly bills, this can lead to ROI in under 12 months.
Caroma toilets are also MaP Premium rated for high-performance flushing with low water use. You get conservation without compromise.
Highlight Models from Eco‑Building Products
Caroma Caravelle Smart 2‑Piece Dual‑Flush Toilet
This is a popular, dependable model with a traditional tank-and-bowl design. It features a sleek, skirted base that’s easier to clean and looks great in modern or classic bathrooms.
- Smart Connect allows flexible 10"–12" rough-in fits.
- Dual flush 1.28/0.8 gallons.
- ADA height and elongated seat for comfort.
- Soft-close seat and Smart Glaze finish.
- Check it out
Caroma Somerton Smart (Lever) Dual‑Flush Toilet
The Somerton Smart adds elegance to any bathroom with a dual-lever flush mounted on the side. Ideal for homeowners who prefer the tactile feedback of a lever over a button.
- Wall-faced design for minimal projection.
- A larger trapway prevents clogs.
- Available with standard or ADA seat height.
- Check it out
Caroma Sydney Smart II Easy‑Height Elongated Toilet
This best-seller combines easy installation, comfortable height, and top-mount dual buttons with high-performance flushing in a compact frame.
- Ideal for small bathrooms.
- Top-mounted buttons are intuitive and easy to use.
- High-efficiency flush with excellent bowl cleanliness.
- Check it out
Why these Models Stand Out
All Caroma toilets are engineered for efficiency—but a few things really set them apart:
- Smart Glaze Technology: A durable, ultra-smooth glaze resists mineral buildup and staining. Cleaning becomes less frequent and more effective.
- Large trapways: Traditional trapways can clog easily. Caroma’s wide-diameter design virtually eliminates clogs, even with less water.
- WaterSense & MaP Premium Certified: Recognized by the EPA and green building programs, these certifications ensure real-world performance and savings.
- ADA compliant options: Comfort-height bowls help users of all ages, particularly seniors or those with mobility issues.
- Quiet, clean flush: Wash-down systems offer consistent, clean flushing with less noise compared to vacuum or siphon jet toilets.
These models are tested for performance, ease of installation, and long-term durability. Whether you’re renovating a bathroom, building a new home, or upgrading for sustainability, Caroma has a model that fits your needs.
Buying and Installation
Shopping for a toilet may not be exciting—but it’s a high-impact decision for water usage and comfort. Here’s what to consider:
- Measure your rough-in: Most homes have a 12" rough-in, but Caroma’s Smart Connect system allows for 10" installations as well.
- Pick your height: Comfort or “ADA” height (~16.5") is ideal for adults and accessibility. Standard height (~15") is common in older homes.
- Decide between buttons vs. lever: Top-mounted buttons give a sleek look. Side levers are more tactile.
- One-piece vs. two-piece: One-piece toilets are easier to clean, while two-piece models are easier to transport and install.
- Look at rebates: Check local utilities for WaterSense rebates.
Installation Tips:
- Use a high-quality wax ring for the seal.
- Tighten bolts carefully—ceramic can crack if over-tightened.
- Caulk the base for cleanliness and stability.
If DIY isn’t your thing, licensed plumbers can usually complete installation in under 2 hours.
Longevity, Maintenance & Support
Caroma toilets are built to last:
- Glazed trapways resist corrosion and buildup.
- Easy-to-replace components: Fill valves, flush buttons, and seals are accessible and affordable.
- Warranties typically cover 2 years for internal parts and 10 years on ceramic.
Maintaining a Caroma is simple:
- Clean weekly with a non-abrasive cleaner.
- Check flush buttons and seat hinges annually.
- Replace seals every 5–7 years for optimal performance.
And should you need help? Caroma’s customer support and the Eco Building Products team offer guidance on replacements, compatibility, and upgrades.
Final Thoughts
A Caroma dual flush toilet isn’t just a bathroom upgrade—it’s a smart, sustainable choice. These toilets combine functionality, style, and a real commitment to environmental stewardship. From day one, they start saving water—and your money—while offering a comfortable, reliable experience every time.
Make the smart switch today.
- Caroma Caravelle Smart Dual-Flush Toilet
- Caroma Somerton Smart Lever Dual-Flush Toilet
- Caroma Sydney Smart II Dual-Flush Toilet
Still unsure which model fits your needs? Contact the team at Eco Building Products for personalized guidance and green building advice.
Together, we can conserve resources, reduce utility bills, and upgrade your bathroom—all with one smart flush at a time.
