回複：有必要給老房子入水管裝過濾器的嗎？

來源: 於 2012-10-03 13:47:05 [舊帖] [給我悄悄話] 本文已被閱讀：次

water filter + water softner.  

water softner about $400.

Water filter about $40.

copper plumbing material about $200

You can DIY.  It is not difficult.

If you have somebody do it for you.  It will cost $1500~$2000.