Adding a third faucet?

[Rondacker]

I'm adding a third to this;




There's a dimple in the edge of the cap. Does the cap pop off or thread?

Thanks in advance.
Cheers

 

[Kumbria]

You need something like this http://www.northernbrewer.com/shop/draft-tower-extension-2-to-3-faucet-conversion.html Just carefully pop of the top of your tower and put it on the top of the extension.