Picture of Travel Jar Water Pump
I will describe how to build a small motored water pump with a travel jar instead of the accepted bottle cap method. This will bring a number of benefits, including easy accessibility for repairs and adjustments of the internal fan. It's relatively cheap, functions well with vinyl tubing and, err... looks great.  

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Step 1: Materials

Picture of Materials
Materials need:

-Travel Jar of your choice of color (Bought @Walmart)
- 3v to 5v dc motor from disk drive, radio shack, hobby lobby, electric sharpener, toy, etc.
    -make sure it has a gear
- glue gun
- 3 to 5 v dc output adapter such as a cell phone charger.
- plastic strips for building a fan rotor. 
- Tubes for water inlet and outlet, i.e. from a pen. 

Drilling/cutting tools for plastic:

- drill (or some other sharp metallic tube)
- micro torch or other heat source
- scissors 
hkortus1 year ago
That isa super cool!!!
Pyrophoric (author)  hkortus1 year ago
Thank you hkortus, I'm glad you like my instructables!
minijc2 years ago
could use it for going camping if your tent floods
kushalverma2 years ago
what basically WD-40 is??? Is it a liquid spray or something like gel?????
Pyrophoric (author)  kushalverma2 years ago
It's a liquid spray can that has many applications, but mainly used for lubrication. Also protects from rust.
kushalverma2 years ago
but how have you applied any solvent or anything between the motor shaft and blades to make it leakprofed????
Pyrophoric (author)  kushalverma2 years ago
I applied WD-40, but it's not necessary.
kushalverma2 years ago
is the shaft of the motor leak proofed with the moving blades?????
Pyrophoric (author)  kushalverma2 years ago
Yeah, basically. Mine still works!
embochner3 years ago
great stuff- is there a way to waterproof the motor to make it splash safe?
Pyrophoric (author)  embochner3 years ago
Thanks, you just do what Jimmy said and also spray some WD-40 on the exposed shaft perforation before use.
I once took a hobby mootor and sealed the vents with glue and ran it completely under water. it sat there and ran perfectly in a jar of water.
You could just cover it in hot glue as long as you don't get any inside.
tzq33tdq3 years ago
can you send me a link to print this instructable out???
Hey man great 'ible I was helping my girlfriends mom with transferring gas from her transmission broken truck to her out of gas van and it got to thinking of ways I could pump water. (I wouldn't risk has since there can always be a problem with electricity).

I had a few questions.
1) can this be done using a larger jar Mainly to fit a larger motor and fan.
2) if so could I just use the fan blades off an old computer fan?
You could pump petrol with it without the risk of fire if you immerse the whole thing in some sort of insulating oil (like baby oil) and draw out just the two lines.
Hmm sounds like a good idea. I was also thinking if using the motor farther from the actual chamber would work. Like adding a thing metal rod from the fan inside the pump, to the motor some few feet away.
Pyrophoric (author)  KevinAlien263 years ago
1) Theoretically, it should work. I have never tried something as large.
2) well, rectangular blades work best, but you could use the fan blades as long as they're cut off and then glued sideways like in my motor.

ngunarathne3 years ago
There's this awesome cog wheel in diskus inhalers ( ) that you can use as the turbine for this. I'll upload an image later if I find time.
afetic3 years ago
For what i can use this ?
Pyrophoric (author)  afetic3 years ago
Practically anything requiring running water. See the last step under applications.