The use of waste of fellow man
Dates back to Father Moses;
The “thunder mug” of far Japan
is emptied on the roses.
In France, Vic Hugo wrote with flame
Of plant food from the doolies;
In China, frugal land of fame,
It’s spread on farms by coolies.
These noxious ways of aiding plants
Irk moderns in their rambles
O’er lawns oft used by wives and aunts
For parties, teas and gambols.
That food is there, we know right well
But we wish satisfaction
Of benefit without the smell
Of rot and putrefaction.
Digested sludge from modern plants
If used with circumspection
Givers answers to our prayers and chants
For plant food or perfection.
Its granules all are living dens
Of potent nitrobacters, …
Its granules all are living dens
Of potent nitrobacters
With freedom from the pathogens,
Those well-known evil actors.
Its humus base gives safe abode
For hormones without number;
One treats an acorn in this mode
And Presto! it is lumber.
It gives out peas full size and weight,
Right gladly we collect ’em,
And fertilize our real estate
With enzymes from the rectum.
In any case, there are more sewer poems out there than one would ever suspect! 
Don't miss this one linked below with illustrations!

http://www.sewerhistory.org/miscellaneous/the-water-that-john-drinks-1849/