Water table replacement

i made the mistake of doing a test cut without water. The torch stopped right above the seam and kept burning. it melted all the sealer in a 4’inch area. The area was warped and the seam had opened up. I tig welded just that area, but got carried away in one area. I used a stronger adhesive and the other area that didnt get nuked held water. Im thinking as a last ditch effort is to run a bead of the sealer underneath the seam in the damaged area to see if it will seal. I think the money that Langmuir will get for 2 replace trays, I can have a local fabricator shear me a 3x4 sht of stainless and have it bent into a one piece tray.
I was also thinking of cleaning up the seam and rewelding the seam. But my experience with stainless is its a bear to cut with a wizz wheel.