PS233 test kit and CYA test question

[waterbear]

I'm still confused. Not about whether to add the water or reagent first but as to how much of each.

The first line on the bottle says "pool water fill line". That would mean add 15ml of pool water first.
Correct!

The second line says "CYA reagent fill line". That would mean add 30ml of reagent.
No, you already have 15 ml of pool water in the bottle. If you now fill the bottle to the second line with reagent you will be adding 15 ml of reagent for a total of 30 ml liquid in the bottle!
Is this correct? The instructions on the test kit lid says "add 15ml of CYA Reagent ..." then fill to top with pool water".

One method is 1/3 water. The other way is 1/3 reagent. Which is it?
One method is 1/2 water. The other way is 1/2 reagent. they are exactly the same.
Sorry if I'm dense on this - I want to make sure I understand correctly.
Thanks

Hope this clears it up for you!

[mshumack]

Thanks. I did not realize that it was an equal mixture of reagent and water.

[scarywoody]

sorry to beat this dead horse, but the directions on the box of the ps223 are wrong? this confused me too.

It does say
fill R013 reagent to 15ml mark----first line in the bottle.
"Step two says to fill the bottle to the neck (just below cap threads) with pool water."
It makes no mention of the 2nd line that says fill with pool water.


So do I follow the box or what i'm reading here and dothe 1/2-1/2?

[waterbear]

fill to the second fill line.