Dirty water!
Pour it out and,
Clean the surface of the place;
Then fill in new water,
For the machine to work once again.
Pass, passage!
With the muse of life;
Passage, pass, sage, age;
With the muse of the water,
But, do pour out the dirty water.
Edward Kofi Louis
http://www.poemhunter.com/poem/pour-it-out-ii/