The words spoken above came from this very person's mouth.
Once the Sword Cultivator climbed up, Xu Yun took the initiative to offer him a cigarette—Xu Yun himself didn't smoke, but he'd gotten used to carrying a pack just in case:
"Master, so was there anything unusual in that pipe?"
"Tsk tsk, Yuxi, huh? Thanks, man."
The maintenance worker took off his gloves, grabbed the cigarette, tucked it behind his ear, then said:
"Unusual? Not really, just one section of the pipe smells much less pungent than the rest."
Xu Yun's interest was instantly piqued:
"The smell is much lighter?"
The maintenance worker nodded, extending his callused left hand and pointing at the opening of the manhole:
"The pipes under the basketball court are all size 1800… that's 1.8 meters, and further ahead there are a couple of 2400 pipes and one main 3000mm trunk line connected from outside."
