Can a clogged drain cost a leak?
As clogs occur, water backs up inside the drain pipe. The continuous presence of standing water in the pipe may eventually cause leakage through the caulking and seals at threaded pipe joints. Clogging means standing water may be contained within drain pipes for extended periods.
Leaks sometimes happen when there is continuous standing water in pipes, what happens is usually water backs up inside the drainpipe as the clog happens. It's recommended you contact a plumber immediately the leakage may start leaking through the caulking and seals where the threaded pipe joint is.