clamp. however, this is to be only used on smaller leaks. you can start by wrapping the pipe with a rubber pad. once the pad is placed over the leaking area, put one or two hose clamps over it and tighten the pad by securely screwing it. fixing leaks through c-clamps and blocks if your pipe is of a small size, then you can make use of a small sized c-clamp to patch it. start by placing a rubber pad directly on top of the leak. after that, put a small wooden strip or block on top of it. get the c-clamp and place it over the fixture to hold 