It doesn't look serious to me. The key is how long the crack has been there. Has it been growing since you noticed it?
-bristol(中英文);
2009-8-24(#5502610@0)
I just found it yesterday because it is leaking. I bought this house for less than 2 years. The previous owner did some repair work on it. It seems it doesn't work. But they didn't tell us.
-wordless(sigh);
2009-8-24(#5502740@0)
Thanks Bristol. I took another two pictures. I also sent you a private message. Could you please check it?
-wordless(sigh);
2009-8-24{183}(#5503850@0)