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Building the Water Gun

Start by cutting the two pieces of pip to length, 20″ should work good.

For the outer pipe drill a 3/16 hole in the end cap the glue the cap onto the pipe – that”s the outer piece complete.

Next you need to make sure the plug for the inner plunger fits inside the outer pipe. Some will and some wont. If yours doesn't you need to sand the outer edge evenly till it does.

Now glue the plug in the pipe leaving a gap (not all the way in) just big enough for your two O rings.

Then glue the cap on the other end.

Now For The Secret Step

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