"The Manusmriti line quoted is this:

Far from his dwelling let him remove urine and excreta

- The Laws of Manu, Chapter 4 verse 151.."

http://www.firstpost.com/living/indias-open-defecation-crisis-why-bring-manusmriti-into-this-1634347.html

" 'Laws of Manu', a Hindu text some 2,000 years old, encourages defecation in the open, far from home, to avoid ritual impurity."

http://rupasubramanya.blogspot.hk/2014/07/is-it-religion-which-makes-hindus.html#!/2014/07/is-it-religion-which-makes-hindus.html