How to Make a Quick Pipe Repair with Push-to-Connect Fittings

First, you must isolate the work area from water pressure. Locate the main water shut-off valve for your home, which is often found in the basement, a utility closet, or near the water meter. Turn the valve handle clockwise until it is fully closed. To ensure the line is depressurized and to drain any remaining water, open a faucet that is at a lower elevation than the pipe you are repairing (e.g., a basement utility sink or an outdoor spigot). Place a bucket under the work area to catch any residual water that drips out.

Using a permanent marker, mark the pipe on either side of the pinhole leak or crack, ensuring you leave at least one inch of clean, straight pipe on the outside of each mark. Position a tubing cutter around the pipe on one of the marks. Tighten the knob slightly and rotate the cutter around the pipe. After each full rotation, tighten the knob a little more. Continue this process until the pipe is cut through. Repeat on the second mark to completely remove the damaged section. Aim for perfectly square cuts.

This is the most critical step for a successful repair. Take a deburring tool and insert it into the freshly cut pipe end, rotating it to remove any metal burrs from the inside edge. Then, use the outside portion of the tool to smooth the outer edge. If you don't have a deburring tool, a round file and a flat file can be used. Next, take a piece of sandpaper or emery cloth and thoroughly clean the outside of both pipe ends, polishing about 1 to 1.5 inches back from the cut. The surface must be perfectly smooth and free of any dirt, paint, or oxidation for the O-ring inside the fitting to create a watertight seal.

Push one of your push-to-connect couplings onto a pipe end to measure its insertion depth, or use the manufacturer-provided depth gauge. Mark this depth on the pipe with your marker. Remove the fitting. Now, measure the exact distance of the gap you created by cutting out the damaged section. The required length for your new piece of pipe is calculated as: (Gap Length) + (Insertion Depth) + (Insertion Depth). Cut a new piece of 1/2-inch copper pipe to this precise measurement using your tubing cutter. Once cut, deburr and clean both ends of this new pipe piece just as you did in the previous step.

Using your marker, transfer the insertion depth measurement onto all four pipe ends: the two existing ends and both ends of your new pipe piece. Take one of the push-to-connect couplings and push it straight onto one of the existing pipe ends with a firm, steady motion until it bottoms out at the depth mark you made. You should feel it 'grab' the pipe. Repeat this for the other coupling on the other existing pipe end. Now, take your new pipe section and insert one end into one of the installed couplings. Finally, align the other end and push it firmly into the remaining coupling. Give each connection a gentle tug to ensure it is secure.

Ensure all faucets are closed. Return to the main water shut-off valve and turn the handle counter-clockwise SLOWLY to reintroduce water into the pipes. Turning it on slowly helps prevent a 'water hammer,' a pressure surge that can damage pipes and appliances. Once the valve is fully open, go back to your repair and meticulously inspect the two new fittings for any signs of water, drips, or beads of moisture. Use a dry paper towel to wipe the fittings and connections completely dry, then watch closely for any new moisture appearing. If it remains dry, the repair is successful.