I saw this on an inspection yesterday. This is the biggest trap I’ve ever seen.
As far as I know, water don’t flow uphill; I would recommend a qualified plumber for repairs.
I see 2 sinks, only 1 trap.
Is that mold near bottom of pic.
At least they are keeping Clorox on hand. The store brands don’t work worth a damn!
Well, theoretically it will work. It sets the weir awfully high, though. I count at least four points where I leak would be likely, and with all those turns it would be very prone to clogging and difficult to run any kind of auger through.