To SLAM or not to SLAM, that is the question.

[chuzie]

FC=5
CC=1
OCLT=2.5
pH=7.6
TA=70
CH=325
CYA=45
SALT=2000
BORATES=50
TEMP=90

The pool is crystal clear but with the current CC and OCLT, I am concerned something is lurking in the background and maybe I should take preemptive action. We have had a lot of rain the last week or so.

So, SLAM or no?

 

[Casey]

You have 1CC. I would SLAM as you lost in the OCLT.

 

[chuzie]

Is it save to swim when SLAMming? I would be going up to 18ppm.

 

[chuzie]

Disregard. Rookie question. I found the answer. Yes, if the water is clear.

 

[karmabiker]

Up to but not over SLAM level.

Don't wear your good suits...

 

[chuzie]

;-) thx

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[chuzie]

I honestly thought 24 hrs would have done it with such a low initial CC. Nope. CC=0.5 OCLT=2.5. I have 2 of 3 SLAM conditions met, but OCLT is killing me. Perhaps better results tomorrow.

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[Abigail K]

Have you checked behind your lights, and brushed under and around any non-removable ladders?
We recently had a member who was seeing OCLT=4 and she had lots of algae behind her light, literally the day after she cleaned them she passed OCLT.

 

[chuzie]

Yes on brushing no on light. Just checked and OCLT=0.0 CC=0.5.

I may pull the light anyway though.

How can I get FC=0.0?

Thx

Sent from my GS3 on Cyanogenmod with T2.

 

[Abigail K]

If FC is 0, OCLT is invalid.
If you meant FC=0 and CC=0.5 you need to get chlorine in immediately.
If you meant "How can I get OCLT=0", I'd seriously suggest checking behind your lights.

 

[chuzie]

Whoops, meant CC

Sent from my GS3 on Cyanogenmod with T2.

 

[Abigail K]

CC=0.5, OCLT=0, water clear?
If yes to all you fit the criteria to pass SLAM.

 

[chuzie]

I understand I'm SLAM complete. Just curious how to achieve CC=0.0

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[Patrick_B]

Maintain your FC at the very, very top for the Cya level for at least a week or two, and the CC will start to fade away. If you do that daily, you'll see an improvement. 0.5 is fine, but I like it when there is no pink on this test.

It costs me some bleach, but it keeps potential problems at a bare minimum and I like that piece of mind. Overkill, but it's where I like to be.

 

[chuzie]

Thx. ;-)

Sent from my GS3 on Cyanogenmod with T2.

 

[Abigail K]

As long as all other numbers are in order, there's no real need to achieve CC=0, anything less than or equal to 0.5 is ok.

Combined chlorine (chloramine, dichloramine, and nitrogen trichloride) primarily results from Free Chlorine (aka hypochlorous acid) oxidizing nitrogen based componds, such as urine/urea) ammonia, sweat, etc. If all you are doing is killing algae and not oxidizing the above, it's very possible you won't ever see CC show up before, during, or after the SLAM process.

So, essentially CC=0 is hard to achieve - it is not impossible, but it isn't necessary either.

 

[chuzie]

Gotcha.

Sent from my GS3 on Cyanogenmod with T2.