Randy T., Camilla C., TJ S.

After the chiller was found tripped off and water was found in the plastic "leak containment apparatus" last week (alog89931), we expected to have to replace the expansion joint as we did in January 2024 (alog75657). Turns out, the expansion joint is okay but the fittings have loosened themselves overtime not just on this line but some of the others as well. More details below.

Today when Randy went to go swap the joint out for a used spare, he noticed that the fittings were very loose, not only on the TCSX supply line, but on a few others. He re-tightened all fittings and we decided to test it out slowly with water. Camilla tried to turn on the chiller, but it would shut itself off saying "low flow". She and I then closed the 3way valve in back which makes the chiller run in a closed loop within the chiller. This worked to get it to run. We then slowly opened that valve to slowly allow water to start flowing down the supply line. Randy was waiting and watching at the joint and never saw any water leaking out during the ~5 min test.

At this point we think that the water just leaked out of the loose fittings when the quick connect was disconnected last week. The updated chiller settings most likely helped and turned off the chiller before the pressure reached levels that could cause damage to the system. We will add checking the tightness to the quarterly pipe check FAMIS task. 

Next steps - start on replacing the TCSX table flex lines, and work on making a unistrut cage around the quick connects to avoid bumps in the future.