The Q1Q2 water header (TB23481) was mounted this morning as per installation drawing TB23400.

Heat shrink tubing was applied to the B1 power cables (two positive, two negative) over the length of cable in the highest field which was showing some signs of radiation damage on the insulation.  The tubing used was McMaster-Carr PN 75665K932 (Clear PTFE, 4:1 shrink ratio, 1.0" ID before shrinking), as recommended by Syd Kreitzman.  Each piece of tubing is 4' long, and two were used per cable.  The first one was shrunk along its full length, then the second piece was only shrunk where it overlaps the first and the remainder was left loose.  This was done to minimize time required in the high dose area.

Hand-stacked concrete bricks were removed from the location where the new piping will run to the water header.  This is scheduled to take place between July 6-8