The standard way is bleach!

回答: 空调下水管堵塞如何疏通?wooddiy2012-08-02 20:54:55

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Now we are talking about experience. -天下多蚤- 给 天下多蚤 发送悄悄话 (63 bytes) () 08/03/2012 postreply 11:55:14

So you are doing bleach? -wooddiy- 给 wooddiy 发送悄悄话 wooddiy 的博客首页 (150 bytes) () 08/03/2012 postreply 12:35:31

有些杂质是Bleach对付不了的,比如沙子。 -monkeyboy- 给 monkeyboy 发送悄悄话 (0 bytes) () 08/03/2012 postreply 12:44:05

:) I never allow such situation to occur in the first place. -天下多蚤- 给 天下多蚤 发送悄悄话 (298 bytes) () 08/03/2012 postreply 14:11:06

If your pressure is higher than 100 lb per square inch -monkeyboy- 给 monkeyboy 发送悄悄话 (222 bytes) () 08/03/2012 postreply 15:33:12

用household bleach也可以,有的是用Shop Vac先吸一下,再灌Bleach -monkeyboy- 给 monkeyboy 发送悄悄话 (145 bytes) () 08/03/2012 postreply 12:39:22

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