Lobster wrote:

using them. What I'm not clear about, in transferring my skills to
end-feed fittings is (I think) how you tell whether you've got solder
down the copper-copper interface, and enough of it to make a proper
joint? Easy enough with Yorkshires, when you see the silver ring appear...

If anything I find them quicker and easier than solder ring fittings
since they (having less metal) get to the right temperature slightly
faster.

Prep and flux as usual, apply heat to the joint and wait a few secs,
then offer up the solder to the joint and touch it on to see if it is
hot enough to flow. Once it is, the solder will flow easily. Feed in
about half an inch or so (assuming you are using typical plumbing
thickness wire). You will actually see the joint suck the solder in.
Once you have added solder, withdraw the heat, wait for a few secs and
then wipe of any excess with a damp cloth for a neat finish.

--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/