After sloppy play at dog park, I just wipe them down with a damp washcloth (to get off the other dog's saliva) most of the time. One of the main joys of basenjis is the lack of odor, so unless they really are soiled, there is no need to bathe them more than 2 or 3 times a year, if that. A good high quality diet keeps the skin and coat nice and soft with just the right amount of oils, and bathing removes those protective oils,not a good thing.
I dilute my shampoo as well, so it is just enough to clean them and rinses off easily without residue.
When Topper was about 1 1/2 he got a skin infection and had to be bathed with medicated shampoo, which had to be left on for 5 minutes, every other day for 3 weeks. He learned that it wasn't going to kill him, and I got really good at it. Now he is good about the bath!
If they have poop on them, you sure have to get it off, but otherwise I would hold off on the baths.
Anne in Tampa