/diy/ - Do It Yourself

when I tighten down the drain into the shoe I get as tight as I can by hand (with leverage). I then tested the seal and it's leaking horribly. so I look underneath and half of the o-ring is getting pinched and compressed like it should while there's like a 1/4" gap on the other side of the o ring that is literally not touching and completely uncompressed. NO wonder it's leaking. anyway, I checked the level of the tub outlet and it's way out of whack. the real problem is that the drain seats itself from the top perfectly level due to the dish shape in the tub.

I'm attaching a drawing of the problem, what are my options here? either call the company and tell them that the tub is fucked up (already had like 3 other QC issues with it, so I'm already pissed at the quality of a $1200 fucking fiberglass tub). I went with the expensive one so I wouldn't have to deal with this shit. goddamnit so much work out the windows if I have to get a whole new tub.

other option is to sand the tub outlet flat, and I don't know how to do this by hand. I don't have enough space for large tools unless I remove the tub, which sucks but is preferable to a total replacement.