但是，这个设计无论多么简单，你总得要焊接铜管，以便接入你现有的热水供应系统。
But, no matter how simplistic this design is, you will still have to solder copper pipe joints if you want to tap into your existing hot water system.
旧的家庭用的是铅管，但是即使是新的无铅水管装置在焊接接头的铜管件或水龙头或铜管中也含有铅。
Older homes may have lead pipes, but even new plumbing that's lead free can still contain lead in brass fitting or faucets or in copper pipes with soldered joints.
你先要确认要焊接的铜管里没有水。
You'll want to make sure that there is no water in the copper pipe you are soldering.
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