Chlorine ppm climbing with no changes?

Skiddy

Gold Supporter
May 17, 2017
132
Seminole Florida
Pool Size
11300
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair iChlor 30
I check my chemicals about once a week and some of the others maybe more and some a little less during normal use. Back in early July I had my first bit of algae and had to learn how to get rid of it, and finally did with some learning curves. For about 3 weeks now I have noticed my FC increasing from my normal 3-5 ppm to 8-10 ppm. So I decided to come down on the Ichlor from 80% to 60. I gave that a week and when I checked this week Im now at 14 ppm FC. I haven't added any liquid Chlorine since the algae problem in July.
I have turned my iChlor down to 10% and will check each day and look for a drop. Maybe I should just invite all the kids from the neighbor hood to come swim in our pool all day lol
On a serious note is this a common issue. Should it drop with the Ichlor decrease?
Thanks as always.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,339
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
As summer winds down, the FC use lessens. In your climate, it will not go to essentially zero as it does for many other areas of the country.
 
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Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
Jun 22, 2014
33,615
Texas, San Antonio/Marion, South-Central Area
Pool Size
17888
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45 Plus
I would also add that previously it sounds as though you were accustomed to producing a large amount of chlorine back when the water had algae, so perhaps there is a bit of al earning curve now that your water is algae-free? With crystal clear water, your FC demand is much lower and consistent than when there is algae. Regardless, go ahead and lower the SWG output and/or pump run time. Whichever works best for you. Just keep an eye on it and don't let it drop below that 4 ppm mark to where you end up with algae again.
 
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Skiddy

Gold Supporter
May 17, 2017
132
Seminole Florida
Pool Size
11300
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair iChlor 30
Thats what I was thinking but its nice to hear it from you guys to confirm. Ill let you know if anything abnormal takes place.
 
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Newdude

Gold Supporter
TFP Guide
Jun 16, 2019
11,175
NY
Hey Skidds !! As the season winds down it’s a GREAT time to fine tune your knowledge of the system because when you miss an adjustment time, you over produce some FC and no harm is done. In the spring you will be doing the exact opposite looking for the increases in UV demand as the season ramps up. At those times you will be low FC if you don’t catch it in time so pay some extra attention now to see how your pool trends. We can all always use a little refresher course and now is the time to hone your skills. :)
 
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Skiddy

Gold Supporter
May 17, 2017
132
Seminole Florida
Pool Size
11300
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair iChlor 30
Thanks we are learning a lot in our first year as pool owners. We have been in our home for 18 years and have really never used the back yard. Now we dont do anything else but hang out in the backyard.
 
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