Combined chlorine going higher despite slamming

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duraleigh said:
Please don't try to find any obscure causes. You need to stay with mainstream issues and I can tell you that testing error is often a huge problem.....ammonia and grass clippings are not. Okay, that's perfectly normal. I want you to test again sometime convenient before dark.....maybe 7-8 PM and let us know the FC. I really don't care about the CC or any of the other tests.....post them if you want but I am ONLY concerned with this huge FC drop.

I am assuming your FC was somewhere around 19-20 or so this AM and you have not added any since that AM test, is that right? Please don't add any chlorine to the pool until AFTER you test this evening.
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Durleigh,
I didn't see your message until today. Yesterday I added chlorine 4 times. The 18 was 1 1/2 hours after I put in 128 oz of 10% which put me at 20ppm. About 5:30pm, I tested and it had fallen to 16 ppm. After dark last night I bumped my pool up to 19ppm. I rechecked at 7 am today. It was 13ppm. I added 101 of 10%. My pool gets full sun until 6:30 pm and then the house starts to shade it. I do not use solar covers. Can you tell me how/ when you want me to test and add chlorine today? I'll record the results/ times. Thanks
 
At this point, and with a clear pool, I would like to simply record your 24 hour loss and nighttime loss.

1. So, test @ 7:00 AM each morning like you have done and then replenish back to 20 ppm (makes the math a little easier)

2. Test again after the sun is well off the pool....maybe around 7:30 or so your time. Replenish to 20 ppm again.

3. Test again at 7:00 PM and then replenish to 20 ppm again

So your next test and addition will be tonight around 7:00 (or something close to that if it's more convenient).

Let's get your daily 24 hour loss and your nighttime loss well established and go from there. I suspect your FC loss is diminishing but let's prove it.
 
duraleigh said:
At this point, and with a clear pool, I would like to simply record your 24 hour loss and nighttime loss.

1. So, test @ 7:00 AM each morning like you have done and then replenish back to 20 ppm (makes the math a little easier)

2. Test again after the sun is well off the pool....maybe around 7:30 or so your time. Replenish to 20 ppm again.

3. Test again at 7:00 PM and then replenish to 20 ppm again

So your next test and addition will be tonight around 7:00 (or something close to that if it's more convenient).

Let's get your daily 24 hour loss and your nighttime loss well established and go from there. I suspect your FC loss is diminishing but let's prove it.
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Duraleigh,
I could start that tomorrow since I have already rechecked and added chlorine before your post.

09/14/16 7:00 am 13 ppm fc (added 101 oz 10%) 19 target 6 ppm loss
1:00 pm 11.5 ppm fc (added 128 oz 10%) 19 target 7.5 ppm loss

I'm losing a lot still. Do you still want me to follow your post advice? Should I recheck the pool after 15 or 30 minutes to see if the chlorine is working at 10%? I'm rechecking at 8 pm and bumping back up to 20 unless I hear from you.
Thank You
 
Yeah, let's stay on the schedule I suggested.

Test and add - 7:00 AM

test and add - 8:00 PM

We'll only do that for maybe three days but let's get a baseline of 24 hour and over night loss.

We'll get this figured out so you can close with a good pool that will open clear for you in the Spring.
 
9/14/16 (24 hour loss was 17ppm)

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9/15/16 (5.5ppm loss overnight)

Pool still clear

Nervous about not checking or adding chlorine for 12 day time hours.
I predict my fc test result to be 7ppm tonight at 7pm.
 
Nervous about not checking or adding chlorine for 12 day time hours.
I predict my fc test result to be 7ppm tonight at 7pm.
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Don't be....you have adequate chlorine to prevent algae and give you proper sanitation.

Please report your test results in ppm. I understand about your FC loss but it would be more clear if you would simply report the results (and how much you added)
 

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duraleigh said:
Yeah, let's stay on the schedule I suggested.

Test and add - 7:00 AM

test and add - 8:00 PM

We'll only do that for maybe three days but let's get a baseline of 24 hour and over night loss.

We'll get this figured out so you can close with a good pool that will open clear for you in the Spring.
Click to expand...

09/14/16 Wed
7:17 am FC- 13 ppm after testing, added 101 oz of 10% to return FC to 19 ppm
1:00 pm FC- 11.5 ppm after testing, added 128 oz of 10% to return FC to 19 ppm
7:15 pm FC- 15.5 ppm after testing, added 76 oz of 10% to return FC to 19 ppm

09/15/16 Thursday
7:00 am FC-14.5 ppm after testing, added 92 oz of 10% to return FC to 20 ppm
7:15 pm FC-12.5 ppm after testing, added 126 oz of 10% to return FC to 20 ppm
 
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