kohler dual flush toilet
Sarah Martinez
Updated on May 12, 2026
Campaigners have warned for years that dual-flush toilets, introduced as more efficient alternatives that were expected to use less than half the amount of water per flush, are more prone to leaks. The problem is said to be so great that the costs are outweighing the benefits.
How does Kohler dual-flush work?
The innovative dual-toned trip lever features two different flush options combined into one unique handle. The longer green lever provides a light flush (for liquid waste) at 1.1 gallons and the full lever gives a complete flush (for solid waste) at 1.6 gallons.
Are dual flush toilets harder to fix?
Replacements may also be more difficult with dual-flush models, as they are built differently than the standard American single-flush toilet. If you ever run into trouble and want to fix the toilet yourself, it could be harder to locate the right parts for a dual-flush.
Which is better dual-flush or single flush?
Pressing a single button results in a half flush, while pressing both simultaneously results in a full flush. Therefore, when you compare both toilets based on water usage, it is clear that the dual flush toilet is the superior toilet.
How much money do you save with a dual flush toilet?
This dual flush toilet converter can reduce up to 50% the amount of toilet water used, allowing for up to $100 of water savings per year. While a dual flush toilet saves the same amount, it costs about $500-700.
What are the benefits of dual flush toilets?
A dual flush toilet drives lower water usage in your home, thereby saving money on your monthly water bill. The Environmental Protection Agency (EPA) estimates that 4,000 gallons of water can be saved annually in a residential household that employs dual flush toilets.
What button do you press on a dual flush toilet?
IT IS FOR WATER CONSERVATION: The larger lever is to flush out around 6 to 9 liters of water, whereas the smaller lever is to flush out around 3 to 4.5 liters of water. Clearly, the larger one is to flush solid waste and the smaller one is to flush liquid waste.
Which toilet button is for poop?
The smaller button is for the half flush and vice versa. It is not obvious, but it kind of shows. We asked some people on the internet. Most of them understand the difference between the buttons, with a context: the big one is for poop, and the small one is for a pee.
How long do dual flush toilets last?
The best option, if you’re remodeling, is to go ahead and buy a dual-flush toilet. They are more costly, but it may be a relatively small percentage of your overall budget, and they can last for 50 years or more. Some use as little as 0.8 gallons of water per flush.
How do dual flush buttons work?
The toilet has two buttons on the cistern rather than the single-flush one; one button delivers a lesser amount of water (eg. 3 litres) and the other a greater amount (eg. 6 litres). It also uses a larger 10 cm trapway in the bowl, allowing for water to come out faster and clear the bowl efficiently.
How often should you replace toilet?
Most plumbers agree that an average toilet can last around 50 years. However, this is only when the toilet is well maintained and gently used. If it was improperly installed or frequently misused, it may not last as long.