Belfast Sprinkler Tank Repair An underwater ROV inspection of this fire sprinkler tank in Belfast was carried out at the instruction of our clients insurance company. The 10 year inspection showed that the mastic jointing at the panel joint seams had perished and that the roof stanchion and vortex inhibitor were severely corroded. Our client stored a lot of combustable materials on site, consequently their insurance company insisted that this fire water tank be in good condition and should always be ready for action should a demand be made on it. As the glass fused wall surface area was still in excellent condition we carried out the repair to the vertical and horizontal panel joints. Before any applications were made we keyed the surfaces by abrasive grit blasting. We always want to apply systems that we can guarantee watertight. So it was an easy decision to encapsulate all the vertical and horizontal bolted panel joints with a fibreglass lining system and apply a zinc rich cathodic coating system over the steel work. This picture shows the full encapsulation of the sectional panel joints using our guaranteed watertight fibreglass lining system. It was very wet and cold in Belfast when we were there, so we got a big indirect diesel heater to help the job along. Thanks to HSS in Belfast for the heater and generator hire.