Here are some pictures of the chamber / alterations, just in case someone spots something that could be adding to the water issue.
![](https://farm5.staticflickr.com/4380/36775419590_a1d525b176_z.jpg)
Patched the shelf holes. I used spray foam to insulate, JB Water Weld Epoxy putty to patch and then appliance spray paint to conceal.
![](https://farm5.staticflickr.com/4358/36775398420_857820c574_z.jpg)
I used white food grade silicone to put down the markerboard floor over the floor and drain in the picture below. I didn't insulate the drain hole though. When I replace the water damaged markerboard floor, I will probably spray insulate the drain to see if it helps.
![](https://farm5.staticflickr.com/4381/36775398870_2bfaa81205_z.jpg)
I replaced the interior door wall with a flat whiteboard and the replaced the door seal with a new one.
![](https://farm5.staticflickr.com/4440/37001133572_2bbf9a5508_z.jpg)
I ran the 3 cables through the same very tight hole and added spray insulation on both sides to help seal it.
![](https://farm5.staticflickr.com/4351/36983237206_c2f3607a49_z.jpg)
![](https://farm5.staticflickr.com/4421/37193266315_e99596119a_z.jpg)