Greener Shopping Difference Maker: The Oasense Reva Smart Low-Flow Showerhead

Greener Shopping Difference Maker: The Oasense Reva Smart Low-Flow Showerhead

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A sustainable dwelling shall be a better dwelling, and you can begin with the bathe. The Oasense Reva good showerhead is a self-powering water- and emissions-saving addition that turns down the water movement to solely 0.27 gallons per minute (gpm) if you step again to cleaning soap up or shampoo and senses if you step below the water to rinse, turning the movement as much as 1.8 gpm, the everyday low-flow price for water-saving showerheads.

The $350 Reva earned our Greener Shopping Difference Maker designation, which represents a product that reduces environmental impacts by 50% or extra in comparison with comparable merchandise. We examined the Reva for a month and located it reliably diminished water utilization and water-heating CO2 emissions by about 51% in comparison with a normal low-flow showerhead, and by 64% in comparison with a conventional 2.5 gpm showerhead. It makes use of sensor expertise to trace whether or not one is standing below the bathe, drawing energy from the flowing water to energy a movement sensor and show indicator LEDs.  You can estimate your water, power, and monetary financial savings utilizing Oasense’s calculator.

Earth911 testing outcomes, September 2022

The Reva Experience

In an period of water shortages and rising water costs, the Reva makes good environmental and monetary sense.

When working at full movement, the Reva is a horny showerhead that delivers a gradual rain-like bathe from all of the nozzles; on the low-flow setting, water streams from six central nozzles (see the picture on the high of this text), sufficient to moist a washcloth or catch water in cupped arms to shampoo. We notably favored the sensor’s skill to run the water at full movement till it’s heat, then scale back to the bottom movement to sign the water is prepared. No extra testing the water temperature along with your hand.

Installation was simple, requiring solely a wrench. It must be positioned in order that the Oasense title is on the high of the showerhead, which positions the sensors on the backside, the place they will “see” you step into the movement. We discovered that the angle of the showerhead is essential to its correct perform. If angled an excessive amount of towards the ground when mounted on a wall, it doesn’t persistently sense the individual transferring below the water — a wave of the hand on the backside of the showerhead solved the issue. Oasense recommends sustaining a ten° to 25° angle until the bathe is put in vertically from the ceiling. The Reva options an easy-to-find and -click button that switches the full-flow setting on till it’s clicked once more or the bathe ends.

Once put in and after a number of showers, the battery within the Reva stays charged for as much as six months, in line with the corporate. Because it generates energy from the flowing water, it fees the battery every time it’s used and reportedly will final a few years. Two of our trial customers did complain that the water turbine that generates the electrical energy is noisy, and it does produce a whirring hum that may be heard by the plumbing in different rooms of the home. “It’s not excellent but however we’ll maintain enhancing it,” Oasense wrote. The Reva is a considerable enchancment over extra complicated good showers, a few of which inexplicably rely upon a cellphone app to manage, and conventional plumbing. Its 10-year guarantee additionally makes it a stable buy that may be repaired if the electronics or flow-control mechanism fails.

While the product is dear upfront at $350, like many sustainable merchandise it offers long-term financial savings attributable to diminished consumption of water and pure gasoline. For instance, primarily based on the native water and gasoline charges in our group, the Reva will save roughly $95 a 12 months, offsetting the preliminary buy value after 4 years.

Using the power generated from water strain is an instance of trying on the current constructed atmosphere to seek out wasted sources that can be utilized to enhance sustainability. It is sensible to attract on water-borne power to energy plumbing fixtures, and we anticipate good, self-powered sensors shall be broadly adopted in different toilet fixtures (a faucet that stops if you take away your arms from the movement, for instance), the kitchen, and round the home. estimates {that a} 1.2-inch lengthy water generator working at 1.8 gpm with 50% effectivity might be harnessed to generate as much as 19 watts of power an hour, excess of wanted to energy the Reva.


Product carbon footprint: Oasense tells us that their evaluation exhibits the embodied carbon — the emissions related to the uncooked supplies and manufacturing — in Reva is about 50.7 kilos. The Reva is manufactured at Chinese factories that use renewable power for 15% of their energy wants, so there’s room for enchancment as extra photo voltaic is put in.

Shipping from the manufacturing unit to a house within the Midwest will generate about 2.9 kilos of CO2, in line with the Freightos Emissions Calculator, which is rapidly offset by the diminished water heating CO2 emissions that outcome from utilizing the Reva. Based on the quantity of CO2 produced throughout manufacturing, we estimate that the total carbon footprint of creating and transport the Reva showerhead shall be saved over the primary 75 showers after changing a low-flow fixture, or simply 43 showers when changing from a conventional showerhead. For a household of 4 showering as soon as each different day, the Reva ought to turn out to be carbon constructive in lower than a month.

Recyclability: From a sensible recycling system perspective, it isn’t clear what recycling class it falls in, and we’re not assured will probably be accepted by any recycling packages within the U.S. with out training about its development for the businesses which may disassemble and recycle it. The Reva showerhead is a fancy system that features metallic, a thermoplastic polymer that blends rubber and polypropylene which requires specialised processing (by, amongst others, Reclaim Plastics), and digital elements that may be separated for particular person recycling.

Oasense doesn’t have a mail-in recycling program presently, and we propose they contemplate offering one to, at minimal, recapture the supplies for processing after they’re separated. “We designed this to final for 10 years,” Ted Li, the corporate’s co-founder mentioned. “I promise you if we do final for 10 extra years as an organization I’ll positively have a program to recycle our showerheads.”

Packaging: Reva packaging is essentially recyclable cardboard, aside from a plastic bag that accommodates the showerhead. We suggest Oasense take away the bag to make its packaging absolutely recyclable.

Oasense is a comparatively new startup primarily based in Oakland, California. They help varied ocean restoration packages, together with coral and kelp forest repopulation tasks by and Sea-Trees, respectively. The group demonstrated an open, engaged relationship with us throughout our analysis.

Product Details

The $350 Oasense Reva showerhead provides a six-inch rain bathe face with sensors powered by a turbine that’s pushed by the bathe water movement. Oasense offers free transport and a 10-year guarantee with a 60-day return coverage.