in control Panel also i cannot find system
Any reflective material cannot be scanned because the scanner light reflects from it causing the scan to be dark, colorless. Their ar eno adjustments for that. :( HP scanjets are one of the best but the technology doesn't allow for scanning even yellow which comes out barely.
Well, since there is a LOT of water flowing through the hose and trying to exit at one spot, so it's going to build up water pressure. The nozzle also contains a valve that controls the flow of the water by moving a lever forwards or backwards. It's almost like a garden hose.
