You will need
  • soft rubber from a Bicycle or a car camera, clamps, special bandages.
Carefully examine the pipe taking on water. Make sure that the hole appeared only in one place, and unexpected "surprises" are expected.
Cut a narrow strip of rubber. Tightly wrap the rubber on the leak, covering a few inches from the hole on different sides.
Attach the rubber straps or binding wire. If you fix with clamps, one position directly above the hole and two on either side of her.
If there was a leak at the threaded connection fittings and pipe heating system, use hose clamps, single winding on a rubber patch and the second for fitting.