Water Powered Clock Round, Blue
|Price:||$19.95 + $4.74 shipping|
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- Powered by water
- Alternative energy
- Water clock
- Decrease your carbon footprint
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Top Customer Reviews
Having said that it works well as a clock for a while and it looks quite funky.
The zinc metal oxidizing and dissolving into the water ("corroding away") is what generates the tiny amount of electric current needed to run the clock. When the zinc gets used up, game over - toss the clock. How long the zinc electrode lasts depends on the conductivity of the water you put into the clock. If needed, better to add salt than acid (vinegar) because it is harder to control the reaction rate of those aggressive H+ ions. Also, acid may cause a buildup of flammable hydrogen gas over the zinc anode, which could be inconvenient near an open flame :-( The clock will not work with distilled or softened water - reduction of the iron sulfates and carbonates in tap water (scale) is also needed to power the clock. When the clock is used up you should see reddish brown iron deposits on the copper cathode. In fact, the warm, yukky, brownish water that comes out out of the tap first thing in the morning is ideal to run the clock because it is full of dissolved ionic solids.
First try filling the clock without any salt - your tap water may be hard enough to run the clock as-is. If it doesn't run on plain tap water, make a weak salt solution on the side (a pinch of salt dissolved in a teaspoon of water in a tea cup). Add a couple of salt water drops into the tap water-filled clock, shake it, and repeat until the clock starts to run. Take care not to overfill the clock! After the clock runs down, change the tap water and add some fresh salt solution.Read more ›
I recommend anyone who buys this to not fill this under a sink, try a water bottle or something so that you can better control the water.
Edit: Now the clock only seems to work for about a day at a time before it starts to get very dim and shut off at which point I have to shake it to get it to come back but by then the clock is several hours off making it essentially worthless as a clock. I've tried changing the lemon/water mix several times now and get the same results.
Although this clock is water-powered you need to add a small amount of a weak acid like lemon juice or vinegar. However, the electronic/display bezel is not water proof. I suspect that some water got into the display, the electronics and display are not sealed.
I called Bedol but they don't warranty the clock for problems like this.
It is hilarious, when suddenly, the water reservoir cover jumps in the air, just as a Champagne cork. The lemon juice ferments and it explodes - Myth Busters go there! It is a great bomb-alarm clock, literally.
The fix appears to be as follows. Fill the clock with cheap vinegar (any type) making sure both the internal copper electrodes are covered. Let it sit like this for 12 hrs or overnight. Then dump out the vinegar and put in clean tap water.
Both our clocks have worked for 6+ months straight after this treatment.
Most Recent Customer Reviews
Wish I had read all the other reviews before buying (impulse purchase--when will I learn?!). Clock stopped working after less than a year: display blinking. Read morePublished 5 months ago by KD
I bought this for my husband last Christmas. He loved it. Works great. It's still running off the original water.Published 7 months ago by paula
I have had the red bell teardrop clock for 4 years now. It runs great on regular tap water. I can't use the alarm because the numbers fade away, but I changed the water, and turned... Read morePublished 13 months ago by Anne Darling
These are facinating in the fact that the power is generated by water, however, they do not last very long. Two or three months seems to be the max, so had to quit buying themPublished on June 13, 2014 by jomama
Would like it a little more with alarm but love the way it works and the novelty. I have used them for interesting gifts. My grand daughter is using hers in her science class.Published on January 1, 2014 by Jeannine C. Ickes
the bars fell off and im vary unhappy with this clock it is a good thing but need more workPublished on December 27, 2013 by Holden Flaig