Numbers ok but water has a hint of cloudiness

That's what I was thinking, but hadn't looked back through the comments. If I remember correctly it was crystal clear and no CC for a while wasn't it? Up until you stirred up what ever it was that caused the 1.5ppm CC.

I'm hoping whatever it was that caused that 1.5ppm CC increase is what has been dropping those FC levels on you the entire time, and now that that number is bumped up there where it belongs, and you are maintaining it there that the FC levels will start holding for you, and allow you to soon pass OCLT, and better still have a Clean algae free pool .:)
 
Added 2 gallon of "low splash" family dollar bleach last night at 10 pm and this morning it was back at 31. I added 2 more gallons of Chlorox 8.25% bleach this morning. Am gonna try and go home at lunch and test it to see where I am.
 
Added 2 gallon of "low splash" family dollar bleach last night at 10 pm and this morning it was back at 31. I added 2 more gallons of Chlorox 8.25% bleach this morning. Am gonna try and go home at lunch and test it to see where I am.

Q: Is it possible that family dollar bleach is not as strong as one may think? If you test prior to the addition, and then test 30 minutes later, and 1 hour later, you will get a sense of how strong the bleach is? This is truly one way to rule out testing errors based on bleach that has degraded. Is it any way possible, the calculations could be off?

I had an incident where I suspected that my loss of FC was between 3-4 ppm per day. We ruled out the size of the pool. The 12.5% liquid chlorine was so old (Good deal and there was no stamp), that the true concentration was almost 6%, a huge difference. (Thanks TFP & Chem Geek). Now, that I look back, I know when my 12.5% is no longer the same strength and adjust the figures accordingly. You kind of have to rule out probability of errors as much as possible. We found a place for $3 a gallon that is nearby and fresh, so moving forward the stop will be only once a month so liquid bleach stays fresh.

Q: If not, the % of concentration that is off, and the liquid bleach is as the label states, is it possible you have junk in the filter that is consuming your FC? I have a sand filter and not too much experience with cartridge filters. But it would make sense.

Both combinations, could throw your numbers way off. Also the OCLT, in my opinion should be no longer than an 8 hour time frame. If you are performing the overnight test at 10 FC, a 1 ppm loss is 10% of the figure. At 35 FC, a 10% loss is 3.5. Possibly allowing the figures to drop down for the overnight may make sense. I have read many forum posts about this, but have nothing handy.
 
Sounds good Gobbler.

As Kim mentioned above please use regular bleach only. Just as an FYI: The low splash/splashless bleaches can also cause a bubble bath effect/foaming in your pool. So if you start noticing some foaming in there the low splash bleach is the culprit. If the foaming does occur, (which I suspect that if it were going to it probably would have done so already), but should it occur, just scoop whatever foam out that you can, and the foam/bubbles you can't get out will breakdown as the chlorine depletes.

You're numbers are looking great. Keep up the good job, and have a wonderful day. :)
 

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You may be on the homeward stretch (I hope, and I'm keeping my fingers crossed for you).

So if you want to try to do an OCLT tonight (Overnight FC loss test), and lets see where you're at on it., you can.
http://www.troublefreepool.com/content/136-perform-the-overnight-fc-chlorine-loss-test-oclt

To do OCLT:

AT bedtime tonight, and at least 30 mins after your last bleach add tonight raising it to shock level. Check and document your FC level and also a CC level as your tonight's levels. Don't add any more bleach after that tonight.

***Then in the morning before the pool is getting full sun on it, again check your FC and your CC level.****

What you hope to see on the overnight is a

1)FC loss of <1.0ppm,
2)a CC of .5, or less- (You've been teetering on this with the 1.5 day before yesterday, but then it went back down, so be sure and recheck the CC tonight and again in the morning too so we can be certain).

3) A crystal clear pool. (You've been passing this already).

I hope this helps and Have a wonderful night. I'm looking forward to seeing what the OCLT shows.
 
Really weird results. Tested last night at 11:30 and FC was 42 (think that may have been a bad test don't know why). This morning I ran 4 test. Results are: 28.5, 31.5, 33.5 and 32. So I took the last test at 32 and added 1 gallon. Gonna test again in 2 hour interval till prolly around lunch. What the heck?

CC .5 or less and water is crystal clear.
 
Yeah. I too agree that it sounds like there was something going on with last night's test.

You got the right idea on adding since you're going to be away for awhile. Keep up the great job, and have a wonderful day. :)
 
Yesterday at 5:30 FC was 33 so I added 2 gallons and left to go out and eat. 9:30 last night when I got home it was 37.5 and this morning at 7:30 FC was 38. Still monitoring and hoping. Should be around house all day but I swear the 871 is going fast.
 
Maybe someone who has been at this for a while can answer this question. I have been following this thread for a while. Posted this before, but maybe have been overlooked.

Please see below:

Is there a testing error when the FC becomes that high with the TF-100? I believe in the past I read the higher you go on the ladder, the probability of testing error increases. With that being said (if accurate), does it make sense to allow the FC to drop to around 10 and then perform the OCLT test? Please see comment below as I would like understand this better. For me, luckily I found TFP early enough and have never had any issues with passing the overnight test.

Both combinations, could throw your numbers way off. Also the OCLT, in my opinion should be no longer than an 8 hour time frame. If you are performing the overnight test at 10 FC, a 1 ppm loss is 10% of the figure. At 35 FC, a 10% loss is 3.5. Possibly allowing the figures to drop down for the overnight may make sense. I have read many forum posts about this, but have nothing handy.
 
Gobbler if those numbers are correct it appears you passed your overnight OCLT. :D

The .5 difference between last night and this morning could have actually been a slight error in testing. (not a biggy as the numbers were very close).

It certainly won't hurt to run it at shock level one more day if you want to, and recheck OCLT tonight, and again in the morning to be certain, but from what you posted today it appears you may have finally officially completed your SLAM process. :) :whoot:

OR If you are certain your testing last night and this morning were correct you can allow your FC level to start dropping slowly on their own today (that will save some of your 0871 today),

But I'd still recommend you recheck OCLT tonight (at whatever your chlorine level is at bedtime tonight), and again in the morning just as a safety check. For repeat OCLT please be sure to check a FC and a CC level tonight, and again in the morning too.

Just let the chlorine levels slowly drop on their own, and Maintain them at all times, between 4-6ppm for your SWG and a CYA of 80ppm. (if you are more comfortable with how we've been doing it you can set your Target slightly higher at 6-7 ppm just to be on the safe side, and hopefully have no more algae reoccurrences in the future.

You've done such a good job Gobbler. I am so proud of you. Keep up the great job, and have a wonderful day.
 

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