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Build a water mortar

Step 11Final assembly

Final assembly

Place the end cap onto the outer pipe and seat it by tapping firmly on the floor.

You can remove the cap by tapping the opposite end of the inner pipe against the floor.

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My name is Carl Morris. I'm an engineer. I like to build things and solve problems. I like learning how other people build things and solve problems. I like to laugh, and look for the humor in a...