Well I don't know wheather someone has asked this before or not but as well all know that one day all the sMerits will get over since only half of the Merit sent gets converted into sMerit , so what will be the next step to get them back? How will you refill the sMerits ?
It's in the OP. The refill of sMerits is done through the sources, the only way everyone else can get more sMerit is to be awarded Merit.
Merit sources
There are 57 merit sources with a total merit generation of up to 11975 sMerit per 30 days
Every Merit you receive results in also getting 0.5 sMerit.