Question about Kärcher K3 Power Control

Connecting a high-pressure washer to a bathroom sink is generally not recommended. High-pressure washers require a significant water flow rate and pressure, which bathroom sinks typically cannot provide. Additionally, bathroom sinks are not designed to handle the high pressure and flow rates required by these devices, which could lead to damage or leaks. It is best to connect high-pressure washers to outdoor faucets or taps that can supply the necessary water pressure and flow rate.