Will this lower my chlorine levels?

[Ban26ana]

The crappy pump went on our Summer Waves pool. Of course it was while we were away. Finally got a sand filter/pump set up the other day and had a green pool. Listened to a pool store guy's suggestion (I know, I know) of adding a certain amount of "shock." The green went away literally overnight.

But now I'm still way over-chlorinated. My TF100 should be here on Friday or Monday. I just got the water tested at my hardware store and here are my numbers.

FC: over 15.9 ppm
TC: over 15.9 ppm
Combined Chlorine: 0.0 ppm
pH: 7.3
Hardness: 15 ppm
Alkalinity with stabilizer correction: 50 ppm
CYA: 4ppm
No copper or iron


The hardware store employee gave me 2 bags of what she said would lower the chlorine. I just got home and looked at the bags (had a 2 year old tugging on me in the store, so I just grabbed them and left). It says pH-Acid Powder. Safely and effectively lowers pH. Active ingredient: sodium bisulfate 100%.

Is this the right thing? I don't want to add it and screw up the pH that seems to be OK by these numbers. But my pool barely gets any sun because we live in the woods, so this heat hasn't been helping the chlorine drop very quickly. It's been 2 days of being non-green and over-chlorinated.

 

[Mr Bruce]

That's dry acid and will lower your pH. Don't add anything right now, your chlorine will fall on it's own. Post your numbers when your test kit comes.

 

[duraleigh]

After you get your money back for the sodium bisulphate, run as fast as you can from that store.

Learn to manage your pool by yourself and your good test kit.

 

[pooldv]

More about pool chems here, Pool School - Recommended Pool Chemicals