Welcome to our forum.
My routine is pretty simple and quite effective. After each soak I add 2 tsp. of dichlor, and run pumps to circulate. If we go more than a few days in a row without using the spa, I add a couple tsp. of dichlor anyway. Every couple week or two so depending on use, I shock with about 2 tablespoons of dichlor. Every month or six weeks I shock with MPS- not sure why, other than I have a container full of the stuff left over from my bromine days.Weekly, I test the water for Ph and alk, and adjust if necessary. Usually not necessary. I also add a metal and scale control product every week- not sure if it's necessary, but I still use it. I spot test for chlorine, usually after I shock, just to be sure the level is down enough if we want to soak. When I switched to dichlor, I tested for chlorine a lot, to get familiar with how much to use and when, etc...Change water every 3 or 4 months, clean filters as needed, intensive cleaning between water changes.Not much more to it than that.