Two kinds of capillary joints are found in plumbing:

The First:

As you look along the shelving of your local plumbers merchant, you will see two types of capillary joint, one is the ‘Yorkshire’ or (integral-ring joint). Yorkshire Joints are self-soldering, with a small ring of solder already inside of the end of the fitting, and just needs to be heated with a blow torch.


The Second:

This is the ‘end-feed’ joint. These joints do not contain solder and are plain and smooth inside, so you need to apply the solder wire to the joint when it is hot.


NOTE:
Yorkshire joints are slightly more expensive than end-feed joints. But you should have no trouble with them. Westcombe Park Plumbers use these joints for many jobs.


Solder:

Yorkshire:

Make sure that you clean the end of the pipe on the inside of the joint with wire wool. Spread some flux paste inside the joint and on the end of the pipe. Put the joint together, and make sure the pipe is home firmly. You can mark it with a pencil to monitor any movement. Now, use the blowtorch to heat the joint and pipe until you see a small, fine silver ring of solder where the pipe meets the joint. Use a little more solder if you think it is required. Let it cool down before any attempt to move is made. A Westcombe Park Plumber can solder this type of joint.


End-feed:

The process is almost the same as above, using solder and marking in the same kind of way. You’ll know when the temperature is right because the solder will immediately melt and flow like water on the joint. When the temperature is reached, continue to dab the solder into the joint until you see it start to gather at the bottom of the joint, but do not use so much that it drips. Always allow the joint to cool fully before moving.