Residues from the past few weeks had been clogging the pipe, causing a very bad congestion from bottom up. The condition was so bad that those residues could not be pumped out from the pipe inlet, or flushed down fron the top. It was stuck.
Until some clog remover was inserted into the pipe. Then goes the gush from the top before more could flow out from where it should flow to. Out of the system. Freedom at last.
That describes how I lost an inch and a kilo yesterday.