Customer has a p trap that keeps falling off and/or leaking. P trap is installed backwards due to the drain pipe coming out of the wall being high, and the sink being very deep and an undermount. Center island sinks are required to be island vented which this one does not appear to be. This would involve opening walls and ceilings to do if necessary. We would need to open the wall to inspect how it is plumbed since the basement is finished. The previous owners removed a wall that the vent used to be in and as a result there is likely no vent. I was able to install the p trap the correct way only after I changed the basket strainer to a shallower strainer from our stock. This prevented us from opening the wall, or removing the dishwasher, or having to install a shallower sink. I filled and dumped the sink multiple times checking for leaks and none found. Do not pour water down the drain that is over 140 degrees because pvc is only rated for 140 degrees. This will cause the pipe and join