Conservation tap-n-flush logo

Published on April 3rd, 2014 | by Scott Cooney

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Water Conservation and a Dual Flush Toilet Converter Review: TapNFlush

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tap-n-flush logoMost of our readers know that we love to review cool eco-products. Recently, I had the pleasure of meeting Jeff Nasrallah, inventor of a water conservation device called the TapNFlush, a dual-flush converter for toilets. We installed a TapNFlush on the toilet in my house. Previously, I had a very low tech water saving device, a toilet tank insert from Niagara Conservation, but after seeing the TapNFlush video, I was very intrigued and wanted to see this puppy work up close and personal.

The TapNFlush is a converter for toilets, meaning that it’s hardware that you install on your existing toilet, rather than going out and buying a specific dual flush toilet. Here’s a picture of the hardware itself. This device is the “tap” part of TapNFlush. It sits on top of the back of the toilet and allows a user to tap its surface, where a little green light will pop on, and then it will automatically control the amount of water used in the flush.

TapNFlush UI device

Jeff and I sat down and talked about the state of the converter industry, and I guess I hadn’t realized what growing pains the industry has undergone. The top three selling products in this niche are heavy duty hardware items, hard to install, hard to remove, and even liable to cause leaks, rather than save water. It’s so bad, in fact, that 47% of the reviews on Amazon for one of the big 3 dual flush toilet converters were negative!

Nasrallah’s product is about 1/4 of the physical equipment of some of the other converters, and it’s a design that’s so simple and elegant that we had it installed on my toilet, and working, in literally about than a minute. According to Nasrallah, TapNFlush can save someone over $100 a year on their water bills. It’s easy to see how. After installing, I went ahead and made this quick video showing how much water was being saved with each flush.

One of the things that is so inherently beautiful about this product is that it’s fully adjustable. If you find that the amount of water being used to flush a #2 is just…not…quite…enough, well, just dial it up a notch (literally, I’m not kidding, there’s a dial and you can increase it to the next notch). If it’s enough and you think you could cut it down a bit, you can dial it down, until you find the Goldilocks levels for both liquid and solid flush. After installing and tweaking, my experience using the TapNFlush for the first 2 weeks is that we’re saving about 50% of the water the toilet would otherwise use on liquid flushes, and about 30% of the water it would normally use on solid flushes.

Conclusion: this is a great device. Simple to install, obvious benefits, quick payback. What’s not to love? So go to Amazon and get yours today!

GreenLivingIdeas wishes to thank Jeff for the TapNFlush review copy, which he generously donated to my house! 



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About the Author

Scott Cooney (twitter: scottcooney) is an adjunct professor of Sustainability in the MBA program at the University of Hawai'i, green business startup coach, author of Build a Green Small Business: Profitable Ways to Become an Ecopreneur (McGraw-Hill), and developer of the sustainability board game GBO Hawai'i. Scott has started, grown and sold two mission-driven businesses, failed miserably at a third, and is currently in his fourth. Scott's current company has three divisions: a sustainability blog network that includes the world's biggest clean energy website and reached over 5 million readers in December 2013 alone; Pono Home, a turnkey and franchiseable green home consulting service that won entrance into the clean tech incubator known as Energy Excelerator; and Cost of Solar, a solar lead generation service to connect interested homeowners and solar contractors. In his spare time, Scott surfs, plays ultimate frisbee and enjoys a good, long bike ride. Find Scott on



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