At least that's what I think you call it. I'm having problems with my Quickmill Anita (3 years old, never descaled) so I have done some amateur wrenching around with the machine.

I'm talking about the tube under the group head that shoots water down into the catch tray when you clean it with a blind filter. Also known as the thing that when you leave a spoon under it blasts water all over your shirt.

It has a cap on the bottom that I removed (a washer, spring and hard rubber piece came out) and I also removed the body of it with a pipe wrench so that the whole 4 or 5 inch long thing was off.
At the top is a brass piece with a short triangular tube on one end, and a long one on the other.

When I reinstalled, I pointed the short end up into the group head, and the longer end downward into the main piece. At the bottom cap, I placed the hard rubber part so that the round end pointed upward, then the spring, then the gasket and cap.

I know this description must sound like a mess, but it's the best I can do. Now the thing either leaks under pressure, or no water gets through it at all, depending on how hard I tighten it.

Is there a torque spec?

Any help appreciated,

Thanks,

John

See the illustration and the links in this post:

E61 Group Drips/Lever Slips Up

The "tubes" you removed are sealed with teflon gaskets and simply require to be "snugged up" - while there probably does exist somewhere a torque spec on them, I have not seen or heard of one.

Look here. It has all the information you need including photographs showing how all the pieces go together. You may need to sign-up in order to gain access to the information. It also explains what you should lubricate when you disassemble things.

http://coffeetime.wikidot.com/e61-group-servicing

You want to screw everything together with the machine off and the brew lever up. This ensures there is no pressure on the drain valves.

You don't say where it is leaking. Out the bottom (drain hole) or at the joints where things screw together.