COLD WATER STORAGE TANK REPAIR - WEST MIDLANDS This old cast iron cold water tank in the West Midlands needed complete refurbishment, aside and out. The tank was being fed by a bore hole, consequently there was plenty of sludge inside. Once the sludge was physically removed from within the tank, we cleaned and keyed the internal surfaces by grit blasting. This process removed all the rust and exposed all the underlying weaknesses with the tank. We used Hodge Clemco JBlast Supa blasting media to get the key we needed. The keyed surfaces were primed with polyester resin. When the primer was cured we repaired all the holes and reconstructed the corroded areas using layers fibreglass matting supported by gap filling paste and a WRAS approved polyester resin. When all the repairs had been made and cured we applied the fibreglass reinforcement matting to the walls and floor area of the tank. The reconstructive fibreglass matting was impregnated with Lloyds approved polyester resin. When the fibreglass lining had cured, a polyester gel topcoat was applied to the surfaces sealing the lining and ensuring water tightness.