A: No, this wand does not have the power-wash setting.
A: The 442599/8639 Watering Wand using the hi flo pattern might do an adequate job on small amounts of dry leaves however it will not work on wet heavy build-up of leaves in the gutter. Their are cleaning wands that are specifically designed for gutter and other cleaning jobs. Melnor's "Extreme Cleaning Wand" will be featured at the Home Depot in February in the Spring Clean - Up section.
A: You can use it for gutter washing but it may be too short and you may need to stand on a ladder. To clean the gutters I prefer a special nozzle available at HD. It's made of brass and provides more water pressure with less water usage.
A: Hi Deborah, Rest assured that you are doing nothing wrong. The only attachment that is necessary for this wand is to attach it to the water hose. If the head comes off of the wand, it should screw back on to it. If the threads are stripped, or if the adhesive that secures the tubing to the threaded connectors has failed, return the wand to your local Home Depot for exchange. Melnor warrants this wand for 7 years. Thank you for asking. Let us get you a wand that will work for you. Travis