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Arctic communities

Redivac vacuum sewerage technology can be used to tackle problems associated with the low temperatures experienced in Arctic communities. The system allows the transportation of relatively low flows of sewage from individual properties at high speed through small bore pipes to the vacuum collection station without the danger of the sewage freezing.  This is achieved by fitting each property with an interface valve, usually located in the bathroom.


Deering, Alaska is an example of the successful application of a vacuum sewerage system in an arctic community. This small village consists of only fifty houses and a school and with no access by road, the village can only be approached by sea or air. This particular Redivac system was constructed using foam insulated polyethylene pipes, laid just above the permafrost. Glycol trace heating was installed to stop the pipes freezing at the winter temperatures of minus 50 Degrees Celcius!


The installation of sewage mains systems in remote arctic communities requires a versatile system with simple and easy installation making the Redivac vacuum sewerage system the ideal choice.

Testimonial: Deering, Alaska
We are using the Iseki vacuum valves in a vacuum sewer system in a remote village just south of the Arctic Circle. Half of the village, about 25 services, was conneceted a year ago and the remainder of the community was connected this last summer. The Iseki valve has proven to be robust and no problems with the valve have been reported.

The measure of the company's support role is how well it hanfles unforseen problems. We had a bit of a dilemma when the contractor substituted sumps that were shallower than specified. Iseki came through with new controllers to solve the problem. The level of technical support for the Deering project has been outstanding.
Chris Allard, Montgomery Watson