The final piece of equipment relating to the Prelos Effluent sewer on each property is the Service Connection, installed in conjunction with the Prelos Effluent sewer mainline. You may have seen the cream-coloured fibreglass lid covering the service connection and located close to the property boundary (see Fig. 2A).
This is an isolation valve system that was installed at the same time as the effluent sewer mainline. This service connection is used to isolate each tank from the main sewer line during testing, commissioning and routine maintenance (see Fig. 2B).
It is important that the service connection be left in the open position once the on-lot interceptor tank has been installed, connected and all electrical testing and commissioning completed. This valve should be closed only by a service technician during routine maintenance or during an emergency.