Maintenance is obligatory!
Regular maintenance of the valve ensures the conservation of value of the investments made and provides safety in the whole water supply system.
Besides the logical necessity of maintenance, the periodic inspection is regulated by:
Drinking water ordinance
“The operator of a water supply system must build the water supply system in accor-dance with state of the art practices, maintain it in a proper condition and ensure that there is no negative impact on the water quality.”
Inspections of all valves, including those for flushing, draining, venting and releasing, must be carried out to ensure their discovery, operational readiness, functionality and that they are in the prescribed position (e.g. open, closed).