Crofton Diving was contacted to perform inspection and repairs inside a cooling tank at Bear Garden Power Station. The cooling tank requires algaecide to keep clean, which meant the divers would need to be in Hazmat gear. The divers discovered that a portion of the 24” PVC pipe was broken, and the pieces were laying on the bottom of the tank. With only eleven days to complete the repair, the team quickly developed a plan and mobilized equipment to remove the broken pieces, insert new materials, and repair the damaged piping. To remove the PVC, divers placed the broken pieces directly under the entrance of the tank using lift bags. A crane lowered its rigging into the tank and divers would attach the PVC pieces to be lifted out. New pipe materials were inserted the same way; attached to the rigging, lowered into the entrance of the tank, and set on the bottom to be air bag lifted into position. Divers utilized an in-line rotary pipe cutter to remove the remaining broken areas of the existing PVC to make for a clean installation of the new piping. The new sections of pipe were cut to fit and attached to the existing piping. Thank you to the dive crew for their commitment to the success of this repair. Head to the last page of the newsletter to find out what Edward Phillips of Dominion Energy had to say about the finished product!
