Where do you connect the siphon hose on pressure washer in order to use soap?

To use soap with a pressure washer, connect the siphon hose to the soap inlet or detergent port, which is usually located near the trigger gun or on the pressure washer body. Make sure the other end of the hose is submerged in the soap solution. Set the pressure washer to the low-pressure soap setting, typically indicated by a specific nozzle or adjustment on the machine. This allows the detergent to be drawn into the water stream for effective cleaning.