Cloudy water -- time to SLAM?

GrandizerGo

Well-known member
Jun 21, 2019
66
Ontario, Canada
Pool Size
11000
Surface
Fiberglass
Chlorine
Liquid Chlorine
The pool water has been super clean until the last couple of days. We've been getting a lot of pollen/seeds/junk plus a bit of rain in the last couple of days. My skimmer sock was completely full to the point of affecting the water flow. Usually I just spray them off but the last couple of days its easier to just replace them.

CYA is 30 and the lowest FC has gone is 3 ppm. CC has never gone above 0.5. I dose with liquid chlorine. Time to SLAM or let the filtering catch up?
 

Attachments

  • 20210527_132754.jpg
    20210527_132754.jpg
    337.7 KB · Views: 15
  • 20210527_135003.jpg
    20210527_135003.jpg
    346.8 KB · Views: 15
+1. It takes a long time for the gunk to start to break down and consume FC. I had crazy oaks and was overrun with pollen, leaves and sticks. None of it ever affected anything. Until whatever blew in the winter sat until spring. Then it was half decayed and all kinds of organics.

Anytime you wonder, perform the Overnight Chlorine Loss Test as said above. It’s probably just the pollen. Good on you for knowing for sure. If it is just pollen, it takes nothing but time, and a lot of it. You don’t *have to* run 24/7 but understand that 12 hours will take twice as long. Mine took about 3 weeks to stop and/or catch up each spring. Once or twice a week do the OCLT to ensure it keeps being just pollen.
 
It's a gray, rainy day today.
My results from last night until this morning.
19:30 FC 8.0
23:09 FC 7.0
08:00 FC 4.5
CC 0.5

I just added more LC which should bring it closer to FC 8.

I'm still a little perplexed on how it would go from crystal clear for almost two weeks and then get cloudy the last few days. Other then pollen/seeds/spiders/the odd worm, there hasn't been much for debris. I run the robot almost every day. Only chemical additions have been LC and MA.
 
Just an update....I didn't start the SLAM because it was cold as heck yesterday. We had snow coming down! I kept FC up around 8ppm and ran the pump/filter 24/7. I cleaned out the skimmer sock three times and the amount of pollen is much less. Pool is looking better. I think there is still a bit of a dullness but we are about 95% there. I'll do an OCLT tonight to determine how to proceed. Pic below taken while robot and pump running.
 

Attachments

  • 20210529_165839.jpg
    20210529_165839.jpg
    395.7 KB · Views: 11
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.