BEIJING — In the heart of the Chinese capital is the showcase neighborhood of Sanlitun, where expatriates and Chinese glitterati go to dine, drink and dance. It has gleaming curved skyscrapers, a boutique hotel where rooms list for $400 to $4,000 a night, and restaurants with cuisines like French, Persian and Mexican.
What it does not have is a modern drainage system.
Here is the fundamental text – Drainage: The Wine of Life.
And here are some other posts on various aspects of this neglected topic: Drainage Posts.
