In a test pressurizing system for a hose such as fire hose, a device is arranged for bearing of a pressurized hose in a way that it is surrounded by protective wall parts. Further, a mechanism is provided on the inside of the wall parts for marking of holes and/or other damages that can be maneuvered automatically or manually via the operator so that at least some protective wall part protects the operator under pressurization. The marking device may be combined with a device for automatic detection of holes and damages. This can for example admit marking of the hose with high precision, and/or be part of a fully automated solution for detection and marking of holes in the hose.