Efficient and sustainable

Numerous lift stations with their high capital cost and maintenance requirements are offset excessive excavation and trenching costs.

Non-continuous slope allows shallow trenching to be used resulting in substantial excavation cost savings.

Exfiltration can contaminate the surrounding area. Infiltration is a serious problem resulting in existing treatment becoming hydraulically overloaded and the imposition of compulsory over-sizing of treatment plants under design.

Absolutely fail-safe – field tested and operated under vacuum conditions. A broken main, at worst, results in infiltration (easily detected) never exfiltration.

Excavating in areas of high water table is expensive due to complicated and time consuming dewatering and trench stabilization procedures.

Eliminating and/or minimizes dewatering and trench stabilization problems.

Unforeseen obstructions such as water or sewer mains, large rocks, etc. usually result in expensive field changes and line rerouting.

Vertical lift capability allows unforeseen obstructions to be easily passed over, under, or around resulting in minimum delay and eliminating extra costs.

200 mm up to 400 mm diameter concrete pipe and vitrified clay pipe sewer main are typical with material costs and excessive unit labour costs.

90 mm up to 200 mm diameter PVC or HDPE vacuum sewer mains are typical. Labour and materials costs for installing vacuum piping are dramatically lower, compared to gravity sewers, due to labour and trenching costs associated with smaller diameter vacuum main.

Wide and deep trenches often make roads impossible to pedestrians and vehicular traffic for long periods of time. Damage to trees and landscaping can be severe.

Small diameter mains, installed just below frost level allow shallow and narrow trenching thereby minimizing construction time and environmental disturbances.