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  1. CTFocusST

    Pool green for over a year.

    The pool school article recommends leaving at least 12" in shallow end to keep weight on liner and prevent it from shifting so I think your limitation is liner not the yard There are some other options such as the water exchange in the article which you could probably combine with draining...
  2. CTFocusST

    Pool green for over a year.

    Darn was hoping shallow end was deeper that means to keep liner from shifting you can only drain 1.5-2 ft at a time
  3. CTFocusST

    Pool green for over a year.

    With the bromide in the water that is needed based on what others said earlier in the thread. Does she know how deep the shallow end is (assuming with 42k there is a shallow and deep end)?
  4. CTFocusST

    Pool green for over a year.

    I still think you & home owner would be making quicker progress with adding chlorine to get to SLAM level more frequently than focusing on filter at this point
  5. CTFocusST

    Pool green for over a year.

    Why are you not performing a SLAM? Based on color of pool you're not at stage yet where it is primarily a filtering issue. Green=algae, chlorine kills algae filters don't but both are needed for slam
  6. CTFocusST

    Pool green for over a year.

    At that rate I also doubt it will clear by Monday. With 42k gallons 2 gallons of 12.5% bleach brings you up to SLAM assuming it at least holds above FC=5 between additions. so you are only getting up to or close to SLAM 2x a day (assuming there is at least FC=5). Can she measure/add a time or...
  7. CTFocusST

    Pool green for over a year.

    How many times a day is chlorine being added?
  8. CTFocusST

    Pool green for over a year.

    Should they raise cya level up from 0 to 30 so they don't lose so much of the chlorine to sun or does the bromide change things?
  9. CTFocusST

    Pool Math........The App

    Oh oops thought it did both last time but looks like my memory was off. Found a way to get last couple days of chemicals on the log page but not in csv format either. I'm curious too now. @Leebo should know. Is what PoolStored is asking about possible or was that in the list to look into already?
  10. CTFocusST

    Pool Math........The App

    If you go to the hamburger menu top left there is an export/import link there. Should see something like this once there
  11. CTFocusST

    Cloudy water and brown/green sediment. Please advise.

    Yea tftest kits sell either the reagants individually if you just need the 0871 or they also have the FAS-DPD tests with the 3 things you need for the testing FC and CC if you are lower on all those
  12. CTFocusST

    Cloudy water and brown/green sediment. Please advise.

    During the slam to conserve reagants you could use 5ml sample and each drop is 1ppm instead of 0.5 for 10ml sample. Go back to 10ml sample for any OCLT or normal testing
  13. CTFocusST

    FC is gone after two days

    Yea so you're at proper chlorine levels at least for normal use. With people swimming you will also likely see a bigger drop in chlorine than a day without swimmers
  14. CTFocusST

    FC is gone after two days

    And as Bperry mentioned you will want to reevaluate swg settings to make sure you are generating enough chlorine daily or are supplementing with enough liquid chlorine daily to stay at target levels, but you need to finish the slam first.
  15. CTFocusST

    FC is gone after two days

    Loss of 2ppm from OCLT confirms the need to SLAM. Whether you start before or after people are over is up to you since pool is clear so not a safety concern. You could bring it up to SLAM level before or wait til after. If you wait until after people leave I would use the liquid chlorine...
  16. CTFocusST

    FC is gone after two days

    Keep us updated on results of OCLT and we can adjust based on that
  17. CTFocusST

    FC is gone after two days

    Yes, still do OCLT but if it fails you will need to SLAM to fix but can still swim. I would test shortly before people get there and make sure at a minimum you are at that 10-12 range but can still use pool tomorrow. And then you can decide whether to SLAM at cya=90 or drain down to a more...
  18. CTFocusST

    FC is gone after two days

    With cya of 90 you can safely swim up to a FC=35 assuming you can see the floor At cya of 90 a slam can get expensive trying to maintain FC=35 so you would probably want to lower cya at that point
  19. CTFocusST

    FC is gone after two days

    At a minimum I would get at least to target for that cya which for liquid chlorine is 10-12 for cya of 90.that way if all is well at least you are within range and you can let it drift back down to the swg target of 6. You would still be under slam level so would still be safe to swim tomorrow...
  20. CTFocusST

    FC is gone after two days

    And turn swg off for OCLT
  21. CTFocusST

    FC is gone after two days

    Yes add chlorine wait 30 minutes with pump running then test again (assuming sun has gone down by this point)
  22. CTFocusST

    Cloudy again..

    It usually takes 24 hours to get a good reading. Add chlorine based on the expected cya level per pool math
  23. CTFocusST

    FC is gone after two days

    Anytime it goes below min algae has chance to start growing. If you want to confirm before you start slam do an OCLT. It is safe to swim as long as you can see bottom of pool and at or below SLAM level for your cya
  24. CTFocusST

    FC is gone after two days

    Both of your FC readings are below min levels for either cya level so you likely have some algae forming already. You really should be closer to target levels per the Likely have to SLAM
  25. CTFocusST

    Cracked skimmer?

    Put a couple drops of food coloring in skimmer with pump off. It spread out in water but eventually just kind of stopped so doesn't look like it is leaking there. Sorry picture doesn't show it as well as I thought but couldn't get a better angle
  26. 20210821_131632.jpg

    20210821_131632.jpg

  27. CTFocusST

    Cloudy again..

    We're you able to get the weir door off to double check/scrub that clean?
  28. CTFocusST

    Cracked skimmer?

    Didn't know that was a separate piece it looked like one piece on half of it so figured it probably started as 1 piece. Good to know. Going to try some food coloring anyway just to double check
  29. CTFocusST

    Cracked skimmer?

    Well apparently what I initially thought was going to be light rain ended being 2 inches of rain. Pool is near top of skimmer and bucket was actually just slightly more than pool. Adjusted to be even and will continue to monitor from here
  30. CTFocusST

    Cloudy again..

    I have that weir door. If you look at the picture of the door itself, see the tabs on the bottom left and right? You press those in and push door towards the skimmer basket to get the door out. It reinstalls in reverse and should snap back in place. I believe to get to them you reach in through...