Disaster Strikes!
Last week Tuesday around 7 PM I was in the middle of processing 8 rolls of film and I realized I was standing in water. Yikes!!!!!!!

My first thought was that the dang pipes were leaking again but a quick check revealed that the pipes were not leaking. I looked under the sink and saw water running down the walls and dripping from the under sink support braces.
I shut off the running wash water, finished processing the film the best that I could, and started cleaning up water mess with towels & a sponge. After the floors were dry I inspected the sink with a flashlight and discovered that there were cracks in the caulk seals in the sink seams.
On top of it we were leaving the next morning to fly to Cleveland for a funereal and I would not be back until Friday. When I got back everything was dry and so I began to investigate the cause of the cracks. I found the tube of sealer that I had used and it seems that I used a LATEX sealer on the seams. The latex had cracked. Crap.
This is the 3rd wood darkroom sink I've built and the first two never leaked. I realized that I had used a silicone bath sealer in the first two sinks but for this one I used latex by mistake. Self-inflicted wound
I went to Lowe's and bought a tube of GE 100% silicon Bath Sealer.
http://www.lowes.com/pd_48316-72643-LW5070___?productId=3084969&pl=1&Ntt=ge+silicon+sealer
I had to clear everything out of the sink area and make sure it was dry. It only took 30 minutes to re-seal all the seams. Instructions say wait 12 hours before use. I'm waiting 48.
If this doesn't work I will have to either:
A. Remove the sink and rebuild it using silicone sealer, or
B. Fiberglass all the seams and re-paint the sink.
Neither solution will be fun. Ugh! All this pain over a $6 tube of caulk.
I will test the sink Monday.