Copper connectors Copper pipe Insulated gloves (optional; recommended) Lead-free plumbing solder Pipe cutter Pipe plug (optional; to prevent water trickles) Plumbing flux paste Propane torch Sandpaper or emery cloth Wire brush
Copper pipe has three different classes -Type M, is thin walledType L, is medium walled, and is usually ideal for home useType K, is thick walled Copper pipe fittings come in three basic types -Category 1, for making bends or turns in your pipeCategory 2, for joining or branching pipeCategory 3, which includes couplings and adapters for your pipe.
Tighten your pipe cutter, which should be shaped similar to a C-clamp, so that the pipe is firmly held by the cutter. Turn your cutter so that it scores the pipe as it rotates. Tighten your cutter again, and then turn it several more times until your pipe is severed. Depending on the thickness of your pipe and quality of your cutter, you may need to tighten the cutter a third time. [2] X Research source
A hacksaw An abrasive wheel A portable or stationary band saw
When working with jagged or burred pipe, you may want to wear work gloves to protect against cuts and slivers.
If you plan to work on a functioning copper pipe, be sure to turn off the water main or cut off valve.
After cleaning the pipe, wipe away any grit with a clean rag. Cleaning the pipe removes oxidation buildup from the metal, which can cause a weak bond. If you are connecting to a valve or other fixture, be sure it is open so you don’t melt or warp any internal seals.
This technique does work, but has a minute chance of clogging aerators or valves when the line is turned on and the bread flushed. [5] X Research source
Flux creates a clean surface for the solder, which will bond your copper components together. Only a small amount of flux needs to be applied. Wipe away excess flux with a clean cloth.
If you are inexperienced with working with a torch, especially to heat metal, you should wear insulated gloves to protect from accidental burns. Be careful to avoid burning your forearm, or any other part of your body, on the heated pipe, which will be hot to the touch. Focused or extreme heat is not necessary to melt your flux; the paste will melt at a relatively low temperature. [8] X Research source
If your fitting glows or turns blue, you have applied too much heat and will have to wait for it to cool before trying again.
If the joint forms a t-junction, begin at the base, move up to the top, and then down the other side. If the joint is vertical, move the solder around the joint, covering it evenly. If the copper is blackened or the solder beads, appears discolored, or drips out, your pipe may be too hot. Never use acid core solder for sweating copper pipe. [10] X Research source
Do not try to cool the pipe rapidly with water or you may damage the joint. Do not tighten the fixture you are soldering or move the joint until it has fully cooled.
