Purchase patch kits for plumbing leaks from the hardware store. You can also use a hose clamp with a rubber patch. Waterproof tape wrapping or using an epoxy paste can also help, but keep in mind that epoxy paste should be applied when the pipe is dry. However, these measures might only serve as a temporary measure, because once an area of your plumbing starts to leak, there’s a good chance that other spots can start leaking as well. You should therefore contact a professional plumber.