Sparge arm design

[Svarrogh]

Here is my sparge arm

 

[Scorrie]

Svarogh, what coupling are you using to enable the arm to rotate?

I'm assuming it's made out of 15/22mm pipe, but the 'swivel' coupling isn't clear in the pictures.

 

[Svarrogh]

This is welded onto copper


and the copper is expanded by hand... it is similar to this...