To reclaim the water it need only be treated to one higher level. For example, of the NT $ 15 million it cost to build the plant, only NT $ 2-3 million was necessary for the tertiary processing equipment that yields reclaimed water.
以環球的污水處理廠花費為例，一千五百萬的建制經費中，三級處理的設施約為二、三百萬。