Re: Do I need a j-trap?
Funny. I was wondering what a J-trap is.
I know S-traps are illegal because too much water may be siphoned out.
Many sinks in China have NO trap.
Must keep them plugged to keep sewer gasses/odors out.
Also the overflows must be plugged.
When my wife and I return to China, I plan to purchase and install an S-trap for her parents and sister.
The sink drain goes to the floor, not horizontally into the wall.
I'd take an educated guess - but I'm unqualified.
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