Brown water after brushing

[PoolDoc]

Yeah.

1. Filter 24/7.
2. Add a quart of polyquat, if available. It will help with algae AND removing iron and dead algae.
3. Add frequent 1 ppm doses of chlorine to the skimmer. Cal hypo would be best, but bleach will help too. 1/4 gallon of bleach or 1/3 lb of cal hypo.
4. In between chlorine doses, add 1/2 box doses of borax, added slowly to the skimmer. Continue these regularly, till you reach 7.0.

[lucybfiddle]

Yeah! I got my Taylor K-2006 today!
Here are my results (well most of them, I couldn't do the ca hardness bc my kit had 2 of R-0012 reagent, but I'm getting that taken care of)

pH=7
Alkalinity =90ppm
FC=0.8ppm
CC=1.2 ppm
CYA= 50ppm

The water is no longer muddy brown, but I need to know what to do with it now. :-)
I have bleach, baking soda and borax on hand and am ready to go!!

[PoolDoc]

for a 30K gallon pool, pH=7.0; FC=0.8; CYA=50:

1. Add 2 gallons of bleach immediately (4 ppm) and 6 gallons (12 ppm) tonight.
2. Add 1 box of borax SLOWLY via the skimmer.
3. Retest chlorine and pH in the AM. If FC>10 ppm, you are probably OK, and can live with daily 4 ppm (2 gallon) doses till you have another plan.
4. If the pH < 7.4, repeat daily borax doses till it is above 7.4.
5. Read the Best Guess chart page, so you can get an idea about how you may want to operate your pool for the rest of the summer.
6. Test your calcium levels, to make sure they are not high enough to be a problem.

[lucybfiddle]

Check! I did all of that stuff and re-tested the chlorine and pH this morning. The pH is at 7.2, so I will continue to add more borax till it gets to over 7.4.
The chlorine is only 1.4 FC and 1 CC. So I should continue adding large doses of chlorine until it loses less than 1ppm overnight, right?

[PoolDoc]

So I should continue adding large doses of chlorine until it loses less than 1ppm overnight, right?

Yes. But make sure your filter is clean and that all dead algae and other goop is removed. That stuff can sometimes consume chlorine, too.