Bleach instead of Chlorine tab for daily/weekly maintenance

[Watermom]

Assuming your numbers are right, and pool stores are not known for accurate testing, your chlorine is too low. Take a look at the chart at the following link which explains the relationship between CYA and chlorine:> http://pool9.net/cl-cya/

In a 30K gallon pool, each of the 121-oz jugs of 8.25% bleach will add roughly 2.5ppm of chlorine. You can use that to help you figure out doses of bleach to add. It is best to test and add bleach in the evening after the strong sun is off the pool. With a CYA of 60, after you test, add enough bleach to take your chlorine back up to around 10ppm. You want to make sure you always keep the chlorine between 5-10ppm. You may find that you will only need to add bleach every other day or so. With frequent testing, you'll soon learn your pool's pattern.

You are going to need to buy a Taylor K2006 or 2006C (better buy) kit since you're going to need to keep your chlorine between 5-10ppm. Other test kits cannot measure past 5ppm. Won't be available locally, but you can get it through this link:> http://pool9.net/tk/

Your pH, CYA and calcium hardness levels are all fine. Your TA is low. You can use a little baking soda to raise it up to 80-100ish. Add a couple of lbs. slowly to the skimmer while the pump is running and then retest several hours later and add a little more until you get it where you want it. (Not critical that it be done immediately, though.)

Now, having said all this I have to ask ---- do you have a bunch of trichlor tabs left that are unwrapped? You might want to also take a look at this:> http://www.poolforum.com/pf2/showthr...-and-chemicals

Hope this helps!

[gagan]

So just did my first testing with the K2006.
For CYA i got around 50 (Maybe a little lower).
TA was 50 as per previous testing.
I got FC of 1.2
CC - I could not test. After adding R-0003 the water did not turn pink (or barely maybe?). So does that mean no CC?

Any thoughts?

Thanks.

[CarlD]

Yeah, if the water doesn't turn pink when you add the R-0003, your CC is 0.

But save your reagents and don't test at 25ml, test at 10ml. Each drop is .5 and that's accurate enough.

[gagan]

Thanks for the tip. Any reason for cc 0?

[Watermom]

That is what you want the CC to be! O is perfect!

[gagan]

Are there any instructions on how to test with 10ml.

I am assuming:
10 ml of water
1 dipper DPD powder (correct???)
R 871 - drop wise - # of drops x 0.5 = FC
R 003 - Still 5 drops (???)
R 871 - drop wise - # of drops x 0.5 = CC

Is that correct?

Yeah, if the water doesn't turn pink when you add the R-0003, your CC is 0.

But save your reagents and don't test at 25ml, test at 10ml. Each drop is .5 and that's accurate enough.

[Watermom]

Yep. You got it!