There are many other people here with more knowledge that me on the use of Chemicals, but FWIW, I just posted my routine in another thread, so I will copy it here:
I use softened water in my tub since my raw well water is so bad. Â When I change the water, I use the Calcium Increaser to bring the Calcium level up. Â I usually do this in a three stage series over several hours or from night to morning. Â (If your Calcium level is ok, you can skip this.)
I have low pH and low alk out of the tap, so I adjust my alk up to about 100 or 120 with baking soda. Â This usually also brings the pH up. Â If it comes up too much, I wait a day and bring it down with some pH decreaser. Â With this method, I get my pH in line and the alk stays at about 80. Â Thereafter, my pH and alk don't move much at all during the life of the fill.
After my pH and alk are lined up, I shock the water using dichlor (six teaspoons for a 450 gal tub is usually enough to get it over 10ppm). Â I found that if I shocked the water first, (before adjusting the pH and alk) it seemed to mess up my alk and pH readings. Â I used to use MetalGon, and when I did, I always held off on installing the N2 cartridge for a few days since the MetalGon could mess up the cartridge. Â
Once my pH and alk are balanced, they generally stay that way.  Thereafter, I use  2 teaspoons of dichlor after each soak and shock the tub about once every two weeks.  I always have good luck with this system.  I really can't say how long its been since I have had a cloudy water day.  I realize that everyone has different water, but I thought this method might help a bit.
I used bromine in my old tub for years, but I like this system much better. Â No bromine smell on you when you get out of the tub!
Benelex, you mention using an activater cocktail, but I'm not sure what you mean. Â Dichlor doesn't need an activater. Â You may be thinking about the start-up pack people use with bromine.
Also, if I were you, I would wait for the electric to be hooked up so you can use the jets to mix your water and chemicals. Â I do not think you will get accurate readings if you don't mix it up well.
(I don't have any info on the spa frog since I use the silver ion/N2 cartridge along with ozone)
Rich