Thanks DADoES,
just the way the guys were talking I thought it may have been a special filter ad set up......
my impersonation would be to combine the 2, the regular magic/self clean filter in place, completing the task, and with the use of the 4 port pump, giving the image that the filter was working as you said
I did this with a Whirlpool with the magic clean filter, added the four port pump, and a "J" tube from a kenmore detergent dispenser setup, the only problem is I had it hooked up to a magic mix filter with the brush, which I still had to clean, but I love the drama of the waterfall....