My chlorine level is 2-3 all the time. How do I shock without levels going too high?

Juggernaut

New member
Jul 20, 2015
4
Monmouth Junction
Hi,
My chlorine level is staying 1-3 all the time.
When I last shocked my pool with bags of chlorine, the level went above 5 and stayed high for a few days.

Since my chlorine level is already fine, am I supposed to just use the oxidizing (non-chlorine) shock? Or am I still supposed to use chlorine to shock, even if the levels go to high to swim in?

Thanks!
Paul
 
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jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
43,202
Tucson, AZ
What is your CYA? That determines if your FC level is "already fine" according to the FC/CYA Chart.
It is safe to swim at MUCH higher FC levels than I think you are currently aware. Swimming is fine up to the SLAM level FC listed in that table above based on your CYA.

Check out these videos:

 
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crabboy

LifeTime Supporter
Jul 24, 2007
605
Suwanee, GA
May I ask why you're adding the bags of shock in the first place? If you are properly maintaining your pool between 1-3 and the water is clear, you should not need to shock your pool.

If your being told to shock it by the pool store, get your own good test kit and some chlorine bleach and you'll never need to buy a bag-a-shock ever again.
 
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Juggernaut

New member
Jul 20, 2015
4
Monmouth Junction
Hi all.
My recent CYA was "in the range" and free chlorine was 2.
Yes, I was told that I need to "shock" as the name implies periodically to give extra sanitizing power to the pool.
Thanks!
(also, wondering why I am not getting email alerts, even though I have it set to notify me from this forum...)
 

frogabog

Gold Supporter
LifeTime Supporter
Jul 16, 2010
2,471
Portland, Oregon
I'm going to assume you're using test strips.

Sorry, those are woefully inaccurate. You need a proper test kit, see: Test Kits Compared. Throw the strips out. I promise good things once you have a proper test kit. Pool store results are never as good as your own. They care about your pool far less than you do.

We don't "shock" at TFP. You will need to follow the SLAM Process.

Did you review the videos and Pool School?
 

crabboy

LifeTime Supporter
Jul 24, 2007
605
Suwanee, GA
Properly maintained pools always have available sanitizing power if your FC is in range for your CYA level and your pH is in range. The pool store just wants to sell you bags of shock.