oic, i tot the pipe go all the way to the roof..so can strike out the workers... do u thk it could be smell from chemicals? even if reno works, workers got toilet to use, no need to pee in the balcony.. haha..
anyway, past few days raining, the smell so strong.. i wake up in the morning, get out of the room to take a deep breath of urine stench...
i probably wil hv to resort to taping up the hole for the time being while I look for a longer term solution..