Water Supply Valve Chamber

This valve chamber is built 12 metres (40 ft) below ground level in a location where the water table is consistently very high. Many previous attempts had been made to prevent water ingress, but the chamber continued to suffer flooding due to infiltration through the concrete. Individual leaks such as those isolated around pipe junctions were sealed with Xypex Patch’n Plug and Xypex Ultra Plug. All concrete surfaces (these were in poor condition with exposed aggregate) were then sprayed with Xypex Concentrate and Modified. Upon completion, the chamber was completely dry and later site inspections have confirmed the success of the Xypex treatment.