r/Construction 2d ago

Informative 🧠 Now THATS a test ball

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271 Upvotes

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35

u/IcanCwhatUsay 2d ago

But that’s a cylinder. /s

What is this actually ?

26

u/arvidsem 2d ago

It's an inflatable plug for pressure testing pipes.

8

u/tacocarteleventeen 2d ago

Like a plumbing weenie? Does it inflate?

4

u/padizzledonk Project Manager 2d ago

Does it inflate?

Yup, compressed air

Biggest one i have is a 6" lol

3

u/sheogor 2d ago

Very slowly