While filling a watering bucket for the garden plants I noticed there was a small suction pulling the nozzle of the hose down and 'sucking' to the bottom - yet the hose was still adding water to the bucket. The hose had the 'standard' nozzle, which is screwed onto the end of the hose. It is longish and has a barrel that can be turned to get water out. The stream goes from very wide spray to the 'focused' jet stream of water. I had the nozzle set to the wide spray - about 2 or 3 turns to open the water stream. I started the filling and after a few seconds of the loud spraying sound of the water into the water, I pushed the hose/nozzle into the water to reduce the noise and when the nozzle tip was a 1/4 inch or so above the floor of the water bucket the nozzle was pulled down and came into contact bottom and stayed there with a slight suction. It was easy to feel the tug on the hose/nozzle while lifting it off the bottom and back and off again... Yes, the water was spraying the whole time and having the suction effect. This seems totally odd. The water pressure from the hose is pushing pretty hard is there some kind of vortex produced that causes this or...?