The maintenance of this equipment is subject to European legislation. Regular in-depth inspections are required to ensure its optimum performance. The APSAD R1 regulation obliges every keeper of a fire safety system to undertake weekly tests and checks on water sources, the pump motor set and the control rooms. Diesel engines must be water-cooled if they are to function correctly. In a standard system, the cooling water is discharged directly to waste.
Whilst the tests are vital to the proper functioning of the sprinkler system, they result in high water consumption. However, it is possible to reduce the amount of water that goes to waste during weekly checks and when sprinklers are in operation.