Use or Hold Liquid Chlorine left over from Opening?

Steve-D

Bronze Supporter
Jul 10, 2020
161
SW Boston Suburbs
Pool Size
20000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Do folks with an SWG try to keep a small supply of liquid Chlorine on hand for emergencies & supplement the SWG before the CL goes bad or do you only buy it as needed given its limited shelf life?

We opened our new plaster/SWG pool in early May using liquid chlorine to make the pool swimmable prior to adding salt and turning on the SWG. I still have two unused gallons (12.5%) in the garage. If the useful life is about 2 months I'm considering turning down the SWG and using up the liquid Chlorine so it doesn't go to waste.

We are are still trying to figure out the optimal % setting for the SWG. Only once has our pool hit the low end of the acceptable FC range using the SWG so I have not yet had a need to use liquid CL to boost FC. I've been conservative in tweaking SWG output by erroring on the side of letting it get higher rather than lower. We had 4 days of high usage over the holiday weekend with a lot of sunshine and high UV so I assumed that FC levels would plateau or even drop but that didn't happen. Right now FC has climbed to the high side of 9 so its a good time to scale back the IC40 & use up the CL.

What are TFP users' strategies for using Liquid CL with a SWG pool?
 
Do folks with an SWG try to keep a small supply of liquid Chlorine on hand for emergencies & supplement the SWG before the CL goes bad or do you only buy it as needed given its limited shelf life?
I didn't use to until chlorine supply shortages got ridiculous. So yes, now I keep some chlorine on-hand as a backup just in case. If they get old, say 3 months or more, I might use them for the pool, laundry, or some other cleaning purpose and grab a couple fresh bottles for emergency purposes.
 
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