Posted：由 wtanaka (648) 于 周六, 2005-11-26 13:57 提交。 | 主题：No Flush Urinals

The "oily liquid" in these no flush urinals that prevents smells from coming from the sewers back into the restroom would sure make a welcome addition in a lot of Chinese bathrooms, if there were some way to incorporate it.

 http://www.waterless.com/