Picture of The Ultimate Squirt Gun - Build a WATERZOOKA!
This squirt gun shoots over a quart of water up to 50 feet in less than 10 seconds. Build this water cannon from PVC in less than 30 minutes.

Just make three cuts, drill two holes and assemble. Soon you will be soaking your friends and drenching your enemies.

Free Plans also available at

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Step 1:

Picture of
LayoutA Label.jpg

The diagram lists the main parts of the WATERZOOKA.

You will need to cut three (3) pieces of PVC pipe and drill two (2) holes in PVC end caps.

#1 - Piston Guide (PVC Cap, 2")
#2 - Cylinder (PVC Pipe, 2" x 24", Schedule 40)
#3 - Nozzle (PVC Cap, 2")

#4 - Piston End Cap (PVC Cap, 1 1/4")
#5 - Piston Rod (PVC Pipe, 1 1/4" x 22")
#6 - Coupler (PVC Coupler, 1 1/4")
#7 - Seal (O Ring, Buna-N, 1.6" ID x .21" CS)
#8 - Seal Holder (PVC Pipe, 1 1/4" x 2")

Step 2:

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Gather your tools and materials

All the materials (with the exception of the O-ring) can be purchased at most hardware stores. The correct size O-Ring can be purchased at an Industrial Supply Outlet or visit

#1 - (Qty 1) - PVC, Pipe, 2" x 24", Schedule 40
#2 - (Qty 1) - PVC, Pipe, 1 1/4" x 24"
#3 - (Qty 2) - PVC, Cap, 2"
#4 - (Qty 2) - PVC, Cap, 1 1/4"
#5 - (Qty 1) - PVC, Coupler, 1 1/4"
#6 - (Qty 1) - O - Ring, Buna-N, 1.6" ID x .21" CS
#7 - (Qty 1) - PVC Glue/Solvent
#8 - (Qty 1) - Waterproof grease (Silicone Grease is best - Vaseline will work fine)

#1 - Block of Wood
#2 - C Clamp
#3 - PVC Pipe Cutter or Metal/hack Saw
#4 - Safety Glasses
#5 - 3/8 Electric Power Drill or Drill Press
#6 - 1/4 Drill Bit
#7 - 1-3/4 Hole Saw
#8 - Medium Grit Sandpaper
#9 - Rag

moreljc1 year ago
The correct orings are available from, part number B70326.
rjs16171 year ago
i'm having problems finding this oring. does anyone have a part number for say Lowe's or Home depot?
HoldOnTight3 years ago
Good 'ible. I must be a visual person because I struggle to understand how the buna ring gets held in place and where it gets held in place, what keeps it in place with respect to either the piston or body -- not sure which is correct. I'm obviously confused. Could you add more pictures showing where the seal goes, and show which pieces hold it in place to clear up my confusion? Thanks
lieuwe5 years ago
simple concept, i like 'wazooka' better for a name :-)
toogers lieuwe4 years ago
sounds too much like "wazoo" as in poop chute.
lieuwe toogers4 years ago
English is not my native language, so i dont really know such word. ;-)
mg0930mg lieuwe3 years ago
That's okay, English is my native language, and I've never heard that..
You've never heard "up the wazoo" ?
toogers lieuwe4 years ago
oh haha
Articas lieuwe3 years ago
there is already a toy called a wazooka
I think it's only in australia though
D00M993 years ago
Anyone know how to make a Waterzooka that automatically refills from a gun-mounted water tank?
lil larry4 years ago
It would be funny if you went kayaking and concealed a waterzooka in your paddle and surprisingly shot another guy and quickly kayaked away. LOL!!!
Many years ago I went whitewater rafting with my Boy Scout troop.

A bunch of us had these for the calm sections...
I have had a rather large squirt gun when kayaking at some lake there was a couple of fishermen i squirted them when ever they caught a fish so they dropped it they got so pissed :D
i would totaly do that
Poehls053 years ago
Just spray paint it and enter it in the Summer Contest.
otterstedt3 years ago
The video ist not visible in Germany. The message says "contains music from SME" :-(
T-Rave4 years ago
Gonna try this out tonight. Have a float trip coming up, so why not be awesome with something simple. Love the simplistic design.
Nice design. If you have a pool two of these are a must. I will be making them shortly. 4 stars Meat spin FTW.