Pool Store vs Test Kit Results??

[Watermom]

Can you post current water testing results? The last ones posted are from a couple of days ago. Losing 9-10 ppm of cl per day is a lot. Are you losing more than 1ppm from sundown to sunup? How does the water look?

[hawkeye91]

Hi everyone --

Got my Taylor test kit today - here are the results from tonight...

pH = 8.0 (has been 7.5-7.6 with HTH kit for days)
Acid demand = 3 drops
FC = 6.4 (was 15 this morning with HTH kit)
CC = 1.0
TA = 125
CH = 700 (!??)
CYA = 60

Based on a CYA of 60, a FC of 6.4 would be right in the middle of the ideal range per the best guess CYA chart. Would that be high enough to throw the pH off, or is the 8.0 likely valid?

Scott

[Watermom]

A cl reading of 6.4 should not affect pH readings. With a CC reading of 1.0, you are fighting something in the water and need to shock this pool and try and hold the cl at shock level until you can go from sundown to sunup without losing more than 1ppm of cl. Run your pump 24/7 for now. Wow! CH of 700? No using cal-hypo in this pool. Also, with a cya of 60, you don't want to use any trichlor pucks or dichlor powder. They will make the cya go up and you don't want it any higher. Stick with bleach.

How ya like that new kit?

[hawkeye91]

Love the new kit! It will be much easier to get a handle on things now. Of course I don't need to tell you that. =)

Morning numbers...

pH = 8.0+
Acid demand = 3 drops
FC = 6.0 (so lost 0.4 overnight)
CC = 0.5

I added acid this morning, but no bleach because I wanted to get a true picture of what was going on with the FC/CC.

Evening numbers...

ph = 7.5
FC = 4.0 (so only lost 2 ppm during the day as opposed to the 9 that the HTH kit was reading - what a piece of junk!)
CC = 0.5

I'm definitely going to add bleach tonight, but do you still think I need to bring it up to shock level, or just bring it up to 10.0?

Thanks!

Scott

[Watermom]

I think if it were my pool and I had a CC reading of 1 less than 24 hours ago, I'd go ahead and shock it up one more time. Then, if you still have less than a 1ppm loss overnight, then let it drift down and I think you'll be good to go. (You are probably ok not to shock, but it is just kind of like insurance. Won't hurt.)