Nov 5 2013, 03:08 PM
QUOTE(chubbyken @ Nov 5 2013, 02:51 PM)
I guess if you are staying in apartment condo and having leaking problem from upper unit but the upper unit keep on delay and does not take action, the only solution is to use pu injection.
Can pu injection do bottom up? Usually I read is from top to bottom. Meaning need to apply from the affected floor. Not affected ceiling.
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