Best Water Gun Ever

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Introduction: Best Water Gun Ever

my dad taught me how to make this amazing water gun today so i thought i would put it on instructables for this project you will need

an old fire extinguisher (pre 1990's)
an air compressor that can go up to 120 psi
water 

Step 1: Find Supplies

we went to a garage sale today and bought a perfect fire extinguisher for a $ 1.50 but im sure most people wont be that lucky so i would look at garage sales and on craigslist and other places for one it should be a large fire ext. i think mine is like a 2 gallon .

Step 2: Preperation

remove nozzle apparatus and fill about half way to 2/3's full and put apparatus back on ( make sure it is on correctly and very tight ) 

Step 3: Compression

after you tighten everythig up your ready to compress it . on most of the fire extinguishers at least the older ones have a bicycle valve so you can compress it . when you are compressing it listen for leaks and any wierd sounds except for a bubbling sound in the container that is fine .
compress to 100 psi ( most fire extinguishers have a meter )

Step 4: Fire at Will

pull the safety pin if there is one and it should shoot 25-30 feet in a strong beam of water.

1 Person Made This Project!

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8 Discussions

0
Budweiser143
Budweiser143

5 years ago on Introduction

These things are awesome!! My father is a fire fighter, so we used to
have a few of these. I used to love playing with them in the same way! I
now borrow them from him when I go on camping trips, in case our fire
starts to get out of control, or just at the end of the weekend when its time to put out.

0
Jimmy Proton
Jimmy Proton

7 years ago on Introduction

how long doe it last?
I could make a flame thrower out of this :3

0
scotsrule08
scotsrule08

Reply 7 years ago on Introduction

It depends on the psi that the extinguisher is under. My usually lasted 30 seconds or so. If you do decide to use it as a flame thrower I would replace the tubing and nozzle to a metal one. (Note: I do not take any responsibility for damages or injuries with the use of the gun)

0
HowToBen
HowToBen

Reply 6 years ago on Introduction

So ironic. Fire extinguisher to flamethrower conversion.

0
allmercy
allmercy

8 years ago on Introduction

On Ebay I sell them seller ID Allmercy just do the advanced search by seller and put my ID in and buy one or two or ten.

0
Schober
Schober

9 years ago on Step 2

I have one that is almost exactly the same as that. Including the little white plastic tube in the end. I measured the amount of water that I put in and found that when I put the labeled amount of water in the tank it met up with the bottom of the plastic tube so now I just fill to that tube every time.

0
scotsrule08
scotsrule08

Reply 9 years ago on Step 2

awesome, i just guess every time. thank you for reading my instructable

0
Fire Explorer 3
Fire Explorer 3

9 years ago on Step 4

I have an old one my dad acquired that i'm too lazy to fill and bike to the gas station... Can't wait 'till next spring, though!