Hello

[aylad]

The "best guess chlorine chart" linked in Pooldoc and Watermom's sigs will give you both a good explanation of the whole CYA/chlorine relationship and the chart that tells you what chlorine levels are required for shocking given your CYA levels.

[Dont155]

Oh, Cool I hadn't picked up on that, Thanks... Anyway I did all ofthe tests i the HTH kit this morning. Here are the results:

TC = 3 ppm (Interesting that this isn't a "Free Chlorine" test)
pH = 7.5 ??? (Tested the tap water and it said the same... city must have done something to change the pH since the last check of the fish tank water)
CYA = 35ppm (Looks like I aimed the dose correctly... still a bit of Stab left to dissolve, but not much)
TA = 160ppm
TH = 320ppm

I like the way they say its a "6-way kit" when they're combining Chlorine and Bromine tests so you only get to do 5 tests...

[PoolDoc]

I like the way they say its a "6-way kit" when they're combining Chlorine and Bromine tests so you only get to do 5 tests...

"Marketing" -- the American way of lying professionally, outside the court room.

By the way, your PF is 184 . . . so 1# of stabilizer will give you a CYA level of 184, AND 1 gallon of plain 6% household bleach will add about 90 ppm of chlorine to your pool.

So, 1/2 cup of bleach (4 fl oz) will give you a chlorine dose of about 3 ppm.

[Watermom]

But .... Please don't put 1lb. of stabilizer in there. You do NOT want a CYA level of 184!!