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1.28 vs. 1.6 GPF Toilets: Which Flushes Better?
May 17, 2024
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Before the 1980s, toilets could use as much as 7 gallons per flush (GPF), a profligate waste of precious resources.

Consider an average family of four during the 1970s – they would have expended over 51,000 gallons of water annually, solely for flushing purposes.

However, newer, low-flow toilets use between 1.28 and 1.6 gallons per flush. More and more people are beginning to prioritize the water efficiency of the toilets we use.

How many gallons does your toilet flush now? In this article, we'll delve deep into the eco-truth of various toilet systems, particularly comparing 1.28 vs 1.6 gpf toilets.

1.28 GPF vs 1.6 GPF

Traditional Toilets vs. Low Flow Toilets

Traditional toilets, otherwise known as high-flow toilets, are a staple in older homes. They operate on a simple mechanism where a large amount of water (around 3.5 to 7 gallons per flush) is used to clear the bowl.

While they may seem efficient, traditional toilets are infamous for their excessive water usage.

On the other hand, low-flow toilets, including the 1.6 gpf (gallons per flush) and the 1.28 gpf toilets, are designed to reduce water consumption. They use less water per flush, making them a more sustainable choice.

As the name suggests, a 1.6 gpf toilet uses 1.6 gallons of water per flush, while a 1.28 gpf toilet uses only 1.28 gallons.

The 1.28 GPF Toilet: The Industry Standard for Water Efficiency

The 1.28 GPF toilet represents a significant leap forward in water efficiency, swiftly becoming the industry standard.

These models consume 20% less water per flush than their 1.6 GPF counterparts, potentially translating to an additional 2,300 gallons of water saved annually for an average family of four.

Beyond the tangible cost savings, the reduced strain on water treatment facilities and increased availability of water resources in drought-prone regions are invaluable benefits of adopting 1.28 GPF toilets.

As environmental consciousness and sustainable living practices gain prominence, this water-efficient option emerges as a compelling choice for eco-conscious consumers.

The 1.6 GPF Toilet: A Transitional Step Towards Efficiency

By September 2021, the vast majority, if not all, toilets in the United States were mandated to comply with the 1.6 GPF standard, a significant milestone in the nation's water conservation journey.

While this represented a notable improvement over its predecessors, the 1.6 GPF toilet still consumed more water than other affordable, high-efficiency options that have since emerged.

For our hypothetical family of four, a 1.6 GPF toilet would consume approximately 11,600 gallons of water annually, exclusively for flushing purposes.

While a substantial reduction from the egregious levels of the past, this figure pales in comparison to the even greater water savings achievable with more advanced models.

The Eco Truth: 1.28 vs 1.6 GPF Toilets

The eco-truth of 1.6 gpf vs 1.28 gpf toilets lies in their water consumption.

A 1.28 gpf toilet means 1.28 gallons per flush. It saves approximately 20% more water per flush than a 1.6 gpf toilet with 1.6 gallons per flush.

This difference may seem insignificant, but when compounded over daily usage and across households, the impact on water conservation is substantial.

Low Flow Toilets

Comparing Water Usage: 1.28 GPF vs 1.6 GPF

When comparing the water usage of toilet 1.6 vs 1.28, it's clear that the latter is more eco-friendly. With a reduction of 0.32 gallons per flush, a 1.28 gpf toilet can save around 2,000 gallons of water per year for an average family.

Luxury Low Flow Toilets: An Eco-Friendly Alternative

Luxury low-flow toilets not only save water but also offer a range of advanced features. From automatic lid opening and closing to self-cleaning mechanisms, these toilets enhance user experience while also being eco-friendly.

The Effect of Gallon-per-Flush on Environment

The concept of gallon-per-flush directly impacts the environment. An average person flushes the toilet around five times a day. This means even a small reduction in water usage per flush can lead to significant water conservation over time.

Thus, shifting to low flow toilets like the 1.28 gpf or the 1.6 gpf toilets can make a substantial difference in reducing our environmental footprint.

The Resounding Impact: Collective Water Savings

The collective water savings achieved by transitioning to low-flow toilets are nothing short of staggering.

If the entire United States were to adopt 1.28 GPF toilets, the nation could potentially conserve over 600 million gallons of water daily, a monumental contribution to preserving this precious resource.

Furthermore, the reduced demand for water treatment facilities and the associated energy and chemical consumption required for wastewater processing underscore the far-reaching environmental benefits of embracing water-efficient toilet technologies.

The Benefits of Switching to 1.28 GPF Toilets

Switching to 1.28 gpf toilets not only leads to significant water savings but can also reduce your water bill. Moreover, many cities offer rebates for installing low-flow toilets, making them an economically viable choice.

1.28 Gallons Per Flush

Cost Analysis: 1.28 GPF vs 1.6 GPF Toilets

When analyzing the costs of 1.28 gpf vs 1.6 gpf toilets, it's important to consider both the initial investment and long-term savings. While low-flow toilets might be more expensive upfront, the long-term savings on water bills often compensate for the initial cost.

The Role of Dual Flush Toilets in Water Conservation

Dual flush toilets are another innovative solution to water conservation. They offer two flush options - a full flush for solid waste and a partial flush for liquid waste. This method allows users to control the amount of water used per flush, leading to substantial water savings.

Factors to Consider: Water Efficiency vs. Flushing Power

When selecting a replacement toilet, striking the perfect balance between water efficiency and flushing performance is paramount.

While older, less efficient models may initially seem more economical, their long-term costs and environmental impact can swiftly outweigh any upfront savings.

Water Consumption: Traditional toilets, particularly those found in older or historical buildings, can consume a staggering 3.5 to 7 gallons per flush, a stark contrast to modern water conservation standards.

Flushing Power: While low-flow toilets like 2441 (1.6 GPF for a full flush, 0.79 GPF for a light flush) excel in water efficiency, some models may struggle to evacuate waste effectively in a single flush, necessitating multiple flushes and potentially negating any water savings.

Innovative Technologies: To address this concern, toilet manufacturers have developed advanced flushing technologies, which harness water velocity to enhance bowl cleaning, reducing the need for excessive water volume.

Dual Flush Mechanisms: Toilets like the J-2033 offer dual-flush mechanisms, allowing users to choose between a more powerful 1.6-gallon flush for solid waste and a super-economical one-gallon flush for liquids, optimizing water usage based on specific needs.

Dual Flush Toilets

Maintenance and Longevity: Ensuring Sustained Efficiency

While luxury low-flow toilets from toilet brands like Jabra Sanitary, incorporate automatic cleaning technologies, regular maintenance remains crucial to ensure their long-term performance and water conservation capabilities.

Regular Inspections: Routinely examining your toilet for leaks or operational abnormalities can help identify and address underlying issues that may compromise its efficiency.

Cleaning Practices: Avoiding the use of specialty in-tank cleaners or harsh chemicals is essential, as these products can degrade the integrity of the toilet over time, potentially reducing its water-saving capacity.

Professional Support: Should persistent issues arise, Jabra's Technical Support Team and network of trained installers stand ready to provide expert assistance, ensuring your low-flow toilet continues to operate at peak efficiency while minimizing water wastage.

Additional Considerations: Energy Sources and Wastewater Disposal

Beyond the immediate water savings, the environmental impact of luxury toilets like those offered by Jabra extends to factors such as energy sources for water treatment, wastewater disposal, and overall water management within a region.

By adopting a holistic approach that considers these ancillary aspects, consumers can further amplify their positive impact on the environment.

The Sustainable Choice: Jabra's Water-Efficient Luxury Toilets

Low-flow luxury toilets, meticulously engineered by Jabra Sanitary, offer substantial benefits in water conservation, energy efficiency, and wastewater treatment. These luxury toilets elevate the bathroom experience while contributing significantly to a future of responsible living.


In conclusion, the decision between a 1.28 GPF and a 1.6 GPF toilet ultimately hinges on individual priorities – whether to prioritize water conservation and environmental stewardship or to emphasize flushing power and reduced maintenance.

Regardless of the choice, Jabra's commitment to innovation, quality, and comprehensive service ensures that consumers can make an informed decision that aligns with their values and needs.

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Estrella Chang

Estrella Chang

I've been selling bathroom products for over 15 years and always make sure my customers are happy.

l'm committed to offering top-notch products and expert advice.

lf you have any problems or need to talk about what you need, feel free to request a free quote or discuss potential solutions with me.



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