chemical grouting - service connections

GROUT CAN STOP THE LEAKS OTHER PROCESSES MISS

Many trenchless processes are available for structural rehabilitation of pipelines but they also require chemical grout. It is now recognized that full-length liners seldom reduce infiltration by more than 50%. Groundwater which cannot enter through joints and cracks can quickly migrate to service connections. Sealing these potential entry points with chemical grout can stop leaks completely and allow you to realize the maximum benefit from your rehabilitation investment.

CHEMICAL GROUT ALLOWS SERVICE LINES AND CONNECTIONS TO BE SEALED COST-EFFECTIVELY

Service laterals are often a source of significant infiltration but, without chemical grout, it is seldom cost-effective to stop the leaks. It usually costs less to treat the groundwater than to stop infiltration in these lines. However, chemical grout is so economical and effective that a positive return on an investment can be realized.

Studies have shown that most infiltration into service lines occurs within a few feet of the main. There are two reasons for this: all except the last few feet of service lines are usually above the water table, and groundwater flows easily in the backfill of a mainline trench because of the French drain effect.