Is that Algae?

[Mdragger88]

Did you ever do an
Overnight Chlorine Loss Test to rule out algae?
If not, do that tonight with fc @ target levels & the swg off.

 

[Clem116]

Get fc up to target fc levels
FC/CYA Levels
with liquid chlorine now. Do not wait for the swg- it is simply too slow.
Use
PoolMath to calculate amounts.
Boost does not mean that your swg makes chlorine at a faster rate- it just means that the swg will run longer (past whatever the normal schedule is & will resume the normal schedule after the boost cycle is over)

Thanks! I’ve tried to look up the bleach percentage, but I can’t find it on the bottle.

 

[Clem116]

Morning all!

I added some liquid chlorine yesterday afternoon per the pool math calculator. Here are the results from my test this morning.

*Note, SWG, and pump have been running for 24hrs.

==========================================
Intex
------------------------------------------
Build Type: Vinyl
Volume: 3357 gallons
------------------------------------------
Latest Test Result Summary:
FC: 9.5 (14 minutes ago)
CC: 0.0 (14 minutes ago)
pH: 8.0 (14 minutes ago)
TA: 100 (14 minutes ago)
CH: 80 (14 minutes ago)
CYA: 85 (yesterday)
SALT: 3000 (yesterday)
==========================================

*PS: Being that high in FC scares me a bit for the kids....Even though I'm in the range.

 

[clduncan]

I went swimming Saturday with my FC at 16ppm and 40ppm CYA it is all good do not worry about 9.5FC with 90ppm CYA

 

[Clem116]

I went swimming Saturday with my FC at 16ppm and 40ppm CYA it is all good do not worry about 9.5FC with 90ppm CYA

Thanks!

@Mdragger88 Let me know your thoughts on my posted numbers from this morning.

 

[PoolStored]

Let me know your thoughts on my posted numbers from this morning.

Your numbers are fine. Did you do the overnight chlorine loss test?

Here is the link to the process...

Perform the Overnight FC Loss Test (OCLT)

The Overnight Chlorine Loss Test tells if the SLAM is finished or if you need to start a SLAM. This article says how to do the OCLT.

www.troublefreepool.com

 

[Clem116]

Your numbers are fine. Did you do the overnight chlorine loss test?

Here is the link to the process...

Perform the Overnight FC Loss Test (OCLT)

The Overnight Chlorine Loss Test tells if the SLAM is finished or if you need to start a SLAM. This article says how to do the OCLT.

www.troublefreepool.com

Not yet, wanted to get my FC up asap before. Now that it's up, still need to do it, right?

 

[PoolStored]

Not yet, wanted to get my FC up asap before. Now that it's up, still need to do it, right?

Yep!

 

[Clem116]

Ok will report back tomorrow morning with the results!

 

[Clem116]

@PoolStored So just checked my FC after sunset and I am at 7ppm. Down from 9.5 earlier this morning. I know I need to check tomorrow morning for the overnight test but is it normal for me to lose that much chlorine in a day? Note that it did rain a lot.

I hope it doesn't rain overnight as this would mess up the overnight test, correct?

 

[PoolStored]

@PoolStored So just checked my FC after sunset and I am at 7ppm.

Great. Starting value of the OCLT. Test in the morning BEFORE SUNRISE. NO SUN.

Down from 9.5 earlier this morning. I know I need to check tomorrow morning for the overnight test but is it normal for me to lose that much chlorine in a day? Note that it did rain a lot.

In the summer in Ohio, I can lose up to 5.5 in June/July. And that is with CYA at 70. With my cover on, no swimmers I lose about 1.5-2. In florida, who knows. Do you have a solar cover and or screened room...those will reduce it.

I hope it doesn't rain overnight as this would mess up the overnight test, correct?

Prolly not. Keep your pump running. SWCG off overnight. If you have a bunch of rain and OCLT fails, just test the next night that won't have rain.

 

[Clem116]

Great. Starting value of the OCLT. Test in the morning BEFORE SUNRISE. NO SUN.

In the summer in Ohio, I can lose up to 5.5 in June/July. And that is with CYA at 70. With my cover on, no swimmers I lose about 1.5-2. In florida, who knows. Do you have a solar cover and or screened room...those will reduce it.

Prolly not. Keep your pump running. SWCG off overnight. If you have a bunch of rain and OCLT fails, just test the next night that won't have rain.

Wait so keep the pump running? It's been off since about 4 hours ago.

Also when you drop in FC, you always need to add back so I feel like I will constantly be adding chlorine.... right?

 

[PoolStored]

Wait so keep the pump running? It's been off since about 4 hours ago.

Also when you drop in FC, you always need to add back so I feel like I will constantly be adding chlorine.... right?

From here: Overnight Chlorine Loss Test

1. If the OCLT is in conjunction with a SLAM, the pump should already be running 24/7/. If performing the OCLT independently as a diagnostic test, it is vital the pump be running at least 30 minutes before the grabbing the nighttime and morning water samples for testing in order to ensure the water is properly mixed.

If I had to get up 30 minutes before sunrise, I'd rather keep the pump running.

As to the chlorine, yes, you test and add LC daily and keep it in range for your CYA at the lowest point. FC/CYA Levels

I thought you had an SWCG?

 

[Clem116]

From here: Overnight Chlorine Loss Test

1. If the OCLT is in conjunction with a SLAM, the pump should already be running 24/7/. If performing the OCLT independently as a diagnostic test, it is vital the pump be running at least 30 minutes before the grabbing the nighttime and morning water samples for testing in order to ensure the water is properly mixed.

If I had to get up 30 minutes before sunrise, I'd rather keep the pump running.

As to the chlorine, yes, you test and add LC daily and keep it in range for your CYA at the lowest point. FC/CYA Levels

I thought you had an SWCG?

Sorry I'm getting confused here.

I do have a SWG. I added chlorine yesterday because FC dropped to 3 and when I tested this morning I was at 9.5 FC.

I took my sample just now with the pump turned off...It's been off since 4 hours ago. Should I turn it back on, let it run for 30mins and get a new sample?

Also, I am not in the middle of SLAM right now. My pool looks clear and perfect.

Thanks for the help!

 

[PoolStored]

I took my sample just now with the pump turned off...It's been off since 4 hours ago. Should I turn it back on, let it run for 30mins and get a new sample?

Yep!

And run 30 minutes in the morning before morning sample. Or let the pump run all night and you get 30 minutes more sleep!!!

I found it helpful to print out the OCLT instruction and read them 3 times. Picked up a nuance every time I read them.

 

[Clem116]

Yep!

And run 30 minutes in the morning before morning sample. Or let the pump run all night and you get 30 minutes more sleep!!!

I found it helpful to print out the OCLT instruction and read them 3 times. Picked up a nuance every time I read them.

And for this "Also when you drop in FC, you always need to add back so I feel like I will constantly be adding chlorine.... right?" My SWG is going to help me maintain my FC, correct?

 

[PoolStored]

And for this "Also when you drop in FC, you always need to add back so I feel like I will constantly be adding chlorine.... right?" My SWG is going to help me maintain my FC, correct?

Yes, that is the whole point of SWCG. To add chlorine to your pool consistently and keep FC level. I only use liquid at open and close. SWCG handles the rest.

Do you run your pump 24/7? Do you have a VSP?

 

[PoolStored]

Another note...SWCG is not good at raising FC. It is good at maintaining FC. It is better to run SWCG 24/7 (not mandatory) because it keeps FC stable. Part of the reason we recommend a cell that is 2x your pool size is because some people don't run 24/7, and the larger size can raise FC better when people only run the pump for part of the day.

 

[Clem116]

Intex say I need to run it 5hrs a day. So I run the pump 6 and the SWG 5hrs a day.

 

[PoolStored]

Intex say I need to run it 5hrs a day. So I run the pump 6 and the SWG 5hrs a day.

So, you run your pump to filter, chlorinate, mix chemicals or skim. Doesn't matter what Intex says. You should run your pump as long as necessary to accomplish these tasks.

You will have to see how long you need to run the pump and SWCG to keep your FC in range for your CYA. NEVER let it get below minimum FC (or even close).