There are many arguments concerning washing, so opinions vary.
My 2c. Diffusion, as opposed to agitation, plays the largest part in clearing negatives and prints, so time spent in water is valuable, even if the water isn't being turned over constantly, in fact the water need not be run constantly. I have a print washer, but these days I don't run it constantly. Once it is loaded I turn the water over for a few minutes and then let it soak for ten. I repeat this periodic turn over five times (with fiber prints) and then turn over for about the last ten minutes. The prints come out clear, and I use the same amount of water as if I had run the washer for only about twenty minutes, as opposed to an hour.