This is an s-trap which is against plumbing code. Water can get siphoned out of trap leaving it dry, thereby defeating the purpose of the trap, which is to prevent sewer gases from entering. Some possible solutions which are kind of related. First is that each basin have it's own p-trap and connect to the vertical drain very low in the sink cabinet. Second is that the lower and the upper section of this s-trap be separated by a horizontal section of at least 2 pipe diameters. If the pipe is 1-1/2", then the lower loop and the upper loop must be separated by at least 3 inches of horizontal pipe. This would also apply to the first solution also. Best solution is to have a p-traps , then a vent out through the roof or connected to existing plumbing venting, then the connection to the drain pipe and eliminate the s-trap problem altogether.
Technically it does it's job. But I've seen worse. This is not bad.
Won't that leave the trap completely empty?
No, that trap should be fine.
It will just hold a good bit more water than a usual trap arrangement. But so long as it doesn't leak I'd let it ride
Can you smell it? If not, it's working. Very simple sniff test literally.
Trap does it's job. It's about how the two sinks are interconnected.
If it's wrong but it works, it's not wrong. But this isn't professional either way, S trap and T.
Its fine
Looks fine to me
What exactly do you think is wrong?
This is an s-trap which is against plumbing code. Water can get siphoned out of trap leaving it dry, thereby defeating the purpose of the trap, which is to prevent sewer gases from entering. Some possible solutions which are kind of related. First is that each basin have it's own p-trap and connect to the vertical drain very low in the sink cabinet. Second is that the lower and the upper section of this s-trap be separated by a horizontal section of at least 2 pipe diameters. If the pipe is 1-1/2", then the lower loop and the upper loop must be separated by at least 3 inches of horizontal pipe. This would also apply to the first solution also. Best solution is to have a p-traps , then a vent out through the roof or connected to existing plumbing venting, then the connection to the drain pipe and eliminate the s-trap problem altogether.
Exactly what I was thinking thinking but the guys said as long as it doesn't smell it's good