Power Analysis of an Indoor Water Fountain

Craving tranquil water splashing in your tiny apartment? You can have a relaxing fountain for under $10 if you have an old phone charger lying around.

Simple setup

The majority of the work is done by this cheap little $6 pump that I got from Amazon. I just barely submerged the input under the water's surface and left the output facing up out of the water.

Powering it was incredibly easy. I just stripped and connected the red and black wires from my power supply to those on the pump. I had a spare switch too so I added it, but that isn't necessary if you're willing to plug it in when you want it on.

I added an assortment of rocks and a friend's ceramic frog to a $2 flower pot base and filled it with water. I tilted the fountain a bit so that it would fling the water over the rocks in a little arc and the fountain was finished.


Power comparison

The fountain is lovely and cute and all, but as a quick side note, I was curious just how much that little guy was really going to cost me in power. Specifically, I wanted to compare the power consumption of natural noise generation to that of synthetic noise from a speaker. My back-of-the-envelope analysis is a little sloppy so please correct me in the comments if you see a mistake.

At 5 Volts, that motor was pulling 2 Watts of power. Since electricity costs about $0.08/kWh, I'm estimating that it'll cost me one penny in electricity every 2.5 days or about $1.50 per year. Meanwhile my radio pulls about 5 Watts so that'll cost me roughly $3.75 per year.

Both numbers are pretty small when you think about it, but I'm glad that the natural sound appears to be a better deal. Additionally, this will become less of a concern eventually because I'm hoping to replace the power supply with a solar cell. But then, I'll have to factor in the solar panel cost as well. (Not to mention that the fountain will only run in the daytime.)

Pump Lifetime

When the pump finally breaks down, I'll update this post with approximate usage statistics to let you all know the life cycle cost of this guy. Of course, the pump will almost certainly break down before an audio speaker would, but then again, that means I get to build something even better next time!


Previous
Next Post »

5 comments

Write comments
Yousufzai
AUTHOR
March 20, 2019 at 6:38 AM delete

I discovered your blog site website on the internet and check a number of your early posts. Preserve in the very good operate. I simply additional increase Feed to my MSN News Reader. Looking for toward reading a lot more by you at a later date!… this contact form

Reply
avatar
April 7, 2019 at 1:54 AM delete

Is it true that you are searching for the Best Air Hockey Table for your Man Cave or Games Room? Peruse our far reaching audits and test outcomes air hockey table for sale

Reply
avatar
May 28, 2019 at 10:06 AM delete

Hi, I find reading this article a joy. It is extremely helpful and interesting and very much looking forward to reading more of your work.. This Site

Reply
avatar
June 22, 2019 at 3:18 AM delete

This article will cover everything you need to know about the Warrior foosball table and why it is an incredible choice. All aspects will be considered including sturdiness, guarantee, quality, and obviously, cost. In addition, we will co look at this website

Reply
avatar
December 9, 2019 at 11:18 PM delete

I wanted to thank you for this great read!! I definitely enjoying every little bit of it I have you bookmarked to check out new stuff you post. check it out

Reply
avatar