green pool: like black/green pool

[bazman]

i just got back from wal mart after getting four 4lb of 20 mule team borax
i am going to the calculator to find out how much i need to put in the pool.
is it ok to include chlorine nad borax at the same time? do they offset ph-wise?or is that the actual idea?
also, what does 12 ppm mean. i know there are three types of chlorine ppm readings. which one is being referenced below.
i am going to bed at some stage tonight, so i will have one more trip to the pool.
if i can put in the chlorine and the borax at one time, what is the max amount of chlroine i can put in without adverse side effects. also, if i cannot put both in at the same time
which one is more important to put in.

also, i used my pool rover again tonight. hardly any green gunk at all. quite the normal dirt one would find.
the water is a very light green now, with slight increase in visibility depth
there is a white "spray" forming on the surface.
i tried the cya test, and i think it was at 30. that test does seem a bit subjective. if i squinted just right, i could see the essence of the black spot at the bottom, even at 30.

[sturev]

also, what does 12 ppm mean. i know there are three types of chlorine ppm readings. which one is being referenced below.

12 ppm is the level of FC (Free Chlorine) that your shooting for by adding bleach.

The objective is to get your FC to 12ppm and keep it there until you have zero CC and you don't loose anymore than 1ppm of FC overnight (Dusk till Dawn/before the sun hits the water).

Like Watermom said, there's no limit on the number of times you can test and dose to keep your level at 12ppm.