關於去水渠垌~~(((急))))

不知你是膠的還是生鉄的，但這裹你可試用此法，先去五金鋪買俗名叫牛奶水的防水劑，然後用此劑混和英泥沙。開好後，敷蓋於漏水處代乾後即可。但在敷上英泥前，你應先抹乾淨渗漏位置。這方法需簡，但日後如有再渗，你就要拆渠再做！注意！如你不懂做泥水工作千期不要試做。

This website has detail explanation and graphic presentation with detailed descriptions about the whole process:

http://www.trsllc.net/lining.html

you are right, we can insert the lining in pipe (hose) form into the leaking pipe and it will expand to coat the inside of the pipe.