Do I need to SLAM?

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While we expect chlorine to degrade over time when in storage, the remaining strength should perform at it's new potency. In other words, if a bottle was initially 10%, and over time was estimated to be 6% strength, it should perform at a 6% strength. I don't believe it will get eliminated any quicker after it weakened, but I can understand why you would ask. Let's see what @Donldson thinks.
 
offtheclock said:
CYA leaning more towards 60 so I bumped by target to 24
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We always round up as it’s logarithmic in scale and not linear. So what looks like a mid value isn’t that value.
offtheclock said:
Question though will the chorine from Feb of this year not only not increase my FC as much but can it also make the FC fall faster from being effected by the sun and fighting this hidden algea that I am dealing with right now?
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You have what you have for FC in the pool. It took you twice as much because it was weaker, but once it’s in there, it’s good for all intents and purposes. If the pool is in target range it will burn off in 2 days due to normal reasons. Even at slam level it will all be gone in a week or so. Whether it would deteriorate faster a month later due to already being ‘old’ is a GREAT question but irrelevant. I LOVE the way you’re thinking about it tho…. It means it’s clicking. (y)

Look at you go.
 
Texas Splash said:
While we expect chlorine to degrade over time when in storage, the remaining strength should perform at it's new potency. In other words, if a bottle was initially 10%, and over time was estimated to be 6% strength, it should perform at a 6% strength. I don't believe it will get eliminated any quicker after it weakened, but I can understand why you would ask. Let's see what @Donldson thinks.
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Correct. When liquid chlorine weakens it just means there's less chlorine in the bottle than there was before. The actual remaining chlorine molecules are not different than they were (otherwise they wouldn't be chlorine) there are just fewer of them. The chlorine that's lost either escaped the bottle or reverted to salt, what's left is as good as it ever was.
 
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Great info. Just hit for third time today when I got home it had dropped to 17 so roughly a 5ppm loss in 3.5 hours. Added a gallon hoping to hit somewhere around 23. Will hit again at 7pm. Is this still a typical daily loss with FC this high? Was hoping to have better progress.
Pool is full sun right now and will be until 530pm.
 
offtheclock said:
Just hit for third time today
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:whoot: Keep it up. (y)
offtheclock said:
Is this still a typical daily loss with FC this high? Was hoping to have better progress.
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If you’re burning it, you’re making progress, even when it doesn’t seem like it. There is a ton of human error involved making 40+ perfect drops. We saw a bunch at the beginning of the season where the SLaM was over and after many days of stupid clear water with FC loss they let it drift to in range and it held perfect. I think you’re there. We also saw a bunch of nasty light niches that weren’t found until they popped them off as a last resort. If you scoured every possible source that could be re-introducing algae, you’re probably good to go.

One of the Aha’s was the autofill that none of us saw coming. Every inch is suspect until you prove it clean. Unfortunately we aren’t there to say ‘It’s the waterfall !!!! Duh !!!’ Lol.

Keep it up through the party, Enjoy the party, and if it’s still losing FC after, I’d let it drift down and see. You won’t lose ground with FC above minimum, it will only be a pause in the action of it doesn’t end it.
 
Newdude said:
:whoot: Keep it up. (y)

If you’re burning it, you’re making progress, even when it doesn’t seem like it. There is a ton of human error involved making 40+ perfect drops. We saw a bunch at the beginning of the season where the SLaM was over and after many days of stupid clear water with FC loss they let it drift to in range and it held perfect. I think you’re there. We also saw a bunch of nasty light niches that weren’t found until they popped them off as a last resort. If you scoured every possible source that could be re-introducing algae, you’re probably good to go.

One of the Aha’s was the autofill that none of us saw coming. Every inch is suspect until you prove it clean. Unfortunately we aren’t there to say ‘It’s the waterfall !!!! Duh !!!’ Lol.

Keep it up through the party, Enjoy the party, and if it’s still losing FC after, I’d let it drift down and see. You won’t lose ground with FC above minimum, it will only be a pause in the action of it doesn’t end it.
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I am really hoping so. This is alot of work. lol Everything is spotless, water looks perfect and my lights are mini microbrites, skimmer and boxes are clean and ladder is spotless. Tested it again before coming back to work after adding and got it to 21.5. The new bleach my wife brought home is 6 months newer so I will using it tonight when I get home.
 
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offtheclock said:
This is alot of work. lol
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It really is. Sometimes life getting busy makes it happen through inattention to the pool. Sometimes it’s just being lazy. Either way when folks see what’s involved with fixing it for good, the right way, They will usually go out of their way to never get there again. Lol.
offtheclock said:
Everything is spotless, water looks perfect and my lights are mini microbrites, skimmer and boxes are clean and ladder is spotless
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Then all we can do is trust that you’ve left no stone unturned. Having clear water, and I’m talkin stupid clear water……. TFP….. OMG why is the pool EMPTY ??!! water……. I’m pretty sure you will be good after several days of hitting it hard.

Have a great party and keep us posted.
 
Newdude said:
It really is. Sometimes life getting busy makes it happen through inattention to the pool. Sometimes it’s just being lazy. Either way when folks see what’s involved with fixing it for good, the right way, They will usually go out of their way to never get there again. Lol.

Then all we can do is trust that you’ve left no stone unturned. Having clear water, and I’m talkin stupid clear water……. TFP….. OMG why is the pool EMPTY ??!! water……. I’m pretty sure you will be good after several days of hitting it hard.

Have a great party and keep us posted.
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I think I am there team! When I left to go back to work around 3 I was at 21.5. I just tested now at 630pm and I only dropped to 19.5. Should I bring it back up to 24 again or do nothing and test again before bed and do a oclt? Or is my current test valid to wait until morning since there is no sun on the pool now and it is shaded?
 

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offtheclock said:
Or is my current test valid to wait until morning since there is no sun on the pool now and it is shaded?
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It's about as valid as it can be with the sun off the pool.

The extra bump to 24 certainly won't hurt anything. Although it does add 10 or so extra perfect drops to be made in the morning. Do it *before* the morning coffee. I know..... i know !!!! But you need every steady hand advantage. Grab a sample and test it while the coffee is brewing or Kueregging.
 
Ok a little more direction please. Was a little late last night doing my check of OCLT. (Bourbon happened) So at 1 am I checked and I was at 21FC which may of been a 1ppm loss from my last addition at 640pm. Unfortutnally had to wake up for work today but this morning I checked I was a 19FC so a 2ppm loss. Checked one more time and was at 18FC. So I am going with 19FC...lol So only a 2 PPM loss from my 1 am check over 6.5 hours. Went ahead and added 5 cups of chlorine to get back to SLAM. I think I am there......should I be ok to let FC start drifting back down to normal level for CYA/FC chart and stop adding chlorine and let me SWG do the work?
 

You are done when:​

When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.
 
mknauss said:

You are done when:​

When all three are true, you are done SLAMing and can allow the FC to drift down to normal levels.
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Okay. Just went home and it had dropped from est. 22-23 to 18.5 so I added 80oz chlorine which it the amount I have had to added the last 4 times or so to bring back up. I only have enough regent to do 1 more oclt tonight so when I get home I am just going to add 80oz again and test around 8pm.

I’ll have more regent Monday but hoping I pass test tonight and can let fall tomorrow. If not for my sons bday party what should I look to do fo FC in the morning? I’ll have about 8 little kids in the water.

Water looks amazing!
93F334A4-8622-4222-BEB4-3302A4EB4A4C.jpeg
 
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offtheclock said:
Okay. Just went home and it had dropped from est. 22-23 to 18.5 so I added 80oz chlorine which it the amount I have had to added the last 4 times or so to bring back up. I only have enough regent to do 1 more oclt tonight so when I get home I am just going to add 80oz again and test around 8pm.

I’ll have more regent Monday but hoping I pass test tonight and can let fall tomorrow. If not for my sons bday party what should I look to do fo FC in the morning? I’ll have about 8 little kids in the water.

Water looks amazing!
View attachment 374113
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It is ok to swim up to slam level FC. Looking at your logs, I would let them swim and add about 60oz. At the end of the day. Swim away.
 
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PoolStored said:
It is ok to swim up to slam level FC. Looking at your logs, I would let them swim and add about 60oz. At the end of the day. Swim away.
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So party is today. I still had a 2 ppm loss over night. Went from 17 to 15. Should I SLAM up until the party or start again this evening after they leave around 5pm?
 
Dose it back to SLAM 3 hours before the party and let it be until after the party. Nobody will even know. Many folks go to SLAM preemptively with no algae / FC loss.

Now. Pretty much every last person with a pool I’ve ever known ……. Dumped 2-4 gallons of bleach in their pool before their party to ‘shock it’. And everyone came out with red eyes and maybe even itchy skin. But none of them knew where their CYA was at, nor what levels of FC would be felt. Just a dump and pray and my first 200 pool experiences were gross and made me put off getting my own pool for several years.

But not you. You know EXACTLY where you are at AND what levels are safe. Your pool will be the hit of the party. You will be asked about your sorcery. They have never seen such a clear pool. Never smelled *no smell*, Blah blah blah.

protip: They really don’t want to know. They want to hear how you agree with their once a week shock method from the pool store. Smile and thank them. Change the subject and ask them how their burger is.
 
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Pool party went great! The kiddos were in the eater all day despite it taking a little while to recover from the nights low temps. Also noticed FC held really good all day after bringing to SLAM that morning and then not touching all day. Probably only had a 5-6 PPM loss the entire day with no additions. So I think I have passed:
Last night
16FC
0CC
This morning
15
.5CC

Think I am good to let fall now?
 
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