I run pretty similar dpete,
On the really dirty stuff I'll run an hour, pour out dirty water, quick rinse then run again for an hour. The ratios(soap,citric acid) will depend on volume of water and where I'm at the water is very soft. As long as you're in the ballpark the brass will come clean.
I do notice the primer pockets come out nice and clean.
I've added a before and after pic of range pick up brass