CountThis Posted May 14, 2009 Report Share Posted May 14, 2009 Well, I accidentally let my chlorine level drop to zero for probably about 12 - 24 hours. I then proceeded to add too much Chlorine and brought the FC up to about 21ppm (the bottle saide 1oz brings to FC up 2ppm in 400 gallons... I guess not since I only added 1.5oz and I have a 350 gallon tub). Should I be doing anything else other than waiting for the FC to come down? Thanks! Quote Link to comment Share on other sites More sharing options...
Nitro Posted May 14, 2009 Report Share Posted May 14, 2009 What are you using to sanitize your tub, Dichlor? I can't see why the bottle would say 1oz = 2ppm FC. That's totally incorrect. Any chance it says 1 TBS = 2ppm FC? I'd just let it come down naturally. Quote Link to comment Share on other sites More sharing options...
PaulR Posted May 14, 2009 Report Share Posted May 14, 2009 Over here chem geek describes using hydrogen peroxide to bring down excessive FC; in a 350 gal tub, 7 oz of 3% peroxide will neutralize 10ppm FC. --paulr Quote Link to comment Share on other sites More sharing options...
CountThis Posted May 15, 2009 Author Report Share Posted May 15, 2009 Thanks for the response Nitro & Paul. FC is down to 10ppm, so I'll just wait another day. Nitro, yup it's dichlor I'm using and yup the package really does say 1oz will make 2 ppm fc in 500 gallons. Guess someone did their math wrong :-) So how much does it take to increase FC in 350 gallons of H2O? Thanks! Quote Link to comment Share on other sites More sharing options...
PaulR Posted May 15, 2009 Report Share Posted May 15, 2009 Check out the Pool Calculator, which I just used to determine that 1 oz of dichlor in 350 gal will raise FC by 11.9. My tub is about the same size as yours; I keep a plastic spoon in my jar of dichlor, and one spoonful is worth about 3ppm FC. --paulr Quote Link to comment Share on other sites More sharing options...
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