SLAM Interrupted

[HeffDad]

SLAM question for the experts... I was a little lax in my pool care leading up to our summer here in Phoenix and got home last week from a work trip and had some green. I SLAM’d Saturday and Sunday, the pool was crystal but I am honestly a little unsure on my OFCLT. The lighting can be tricky testing inside at night and then outside the next morning, but I think I may have lost 2-3 ppm instead of <1 ppm. It’s really not feasible for me to SLAM during the work week especially this week. So here’s my question:

Will I lose a lot of ground and let Algae grow if I stop a SLAM prematurely during the week, maintain FC on the high end during the week, and resume a SLAM Friday night and throughout the weekend.

I realize I’m stretching the “M” in SLAM, but I’m trying to keep this manageable with work life.

My latest results before adding chemicals tonight are below. My plan would be to target chlorine adds to 12ppm to keep FC high enough to last through the loss experienced during our long hot days.

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Heffron’s Pool
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Build Type: Plaster
Volume: 15000 gallons
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Latest Test Result Summary:
FC: 6.0 (47 minutes ago)
CC: 0.0 (2 days ago)
pH: 8.1 (47 minutes ago)
TA: 90 (2 days ago)
CH: 925 (2 days ago)
CYA: 50 (2 days ago)
TEMPERATURE: 81° (2 days ago)
CSI: 0.88 (47 minutes ago)
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[mknauss]

Why stop? Can you test and add in the morning and evening? At least that --

 

[mknauss]

Your shock level FC is 20 ppm.

 

[HeffDad]

Why stop? Can you test and add in the morning and evening? At least that --

I can definitely add in the morning and evening and have been hitting 20ppm. Is hitting 20ppm in the morning and evening worth it if I cannot maintain it during the day? I know it would be a short term nuisance, but I have 4 kids on summer break that want to swim all day every day. Is there enough benefit to hitting 20ppm first thing in the morning if I cannot maintain it during the day?

 

[Casey]

Youd be best served to make sure you hit it at night so the chlorine can kill the algae and possible bacteria growing and not compete with the sun. The morning addition is a bonus. Then once the weekend gets here, you can perform an OCLT.

 

[HeffDad]

@Casey @mknauss thank you!