Re: I GIVE UP!
Very good - ok, thanks for getting into the specifics that does help us understand alot better. And I'm with you on the equipment side of things - I often have to have my DH do the equipment stuff - some of it I just can't manage!
Re: the gallonage - that was my concern (which number were you using as your "target" for bleach dosing) so If you've been using the 29,000 you certainly are not under-shooting it.
I wouldn't use a different dropper bottle - just keep using the new one - you can wipe the tip off with a damp cloth between drops -see if that's any help (it's a known issue with the R-009 for the TA test - static electricity being the cause - but I have yet to hear about it on the chlorine test) I don't know if switching to a different bottle (unless it's the old one as you suggested) would throw off results further? Duraleigh would know, we'll ask him.
Higher TA and PH combined with high CH
can cause cloudy water - which is why I asked about the CH. You are correct, if your level was 60 that's fine for vinyl - but it's a good idea to do the test again just to verify things and rule that out.
A TA of 120 is not
awful. When the SWG is operating, it will cause your PH to drift up and sometimes it will be rapid and perhaps even annoying. The key is the PH - never let it go above 7.8. Everytime it hits 7.8 (or higher) use Muratic Acid to lower the PH to 7.2. These acid additions will also lower your TA and it will drop into range. So just monitor these things.
Now, if you find when you do your calculations for the Muratic Acid, and your target is 7.2, and you end up at lowering the 7.0-6.8- then it would be safe to guess the 29,000 gallons is probably not accurate and we'll need to figure out the correct gallonage.
As for the sand -
ivyleager said:
Why check? If it's suspected, all she needs to do is put filter to rinse setting and it will resettle the sand, right?
Normally, yes, but there have been cases where the sand is extremely channelled and clumped and rinsing doesn't resettle it. Which is why we recommend checking it during extreme prolonged cases of cloudiness when algae is dead.
So glad the SWG is working - that would have been
one more thing to deal with right?
What I would like for you to do today is:
1) check the sand - if its channelled follow the steps in the link Butterfly provided above. (and let us know, LOL, if the mystery has been solved

)
3) keep your FC above your "target" level for your CYA -I want it slightly higher than normal for today.
2) repeat the overnight test tonight - turn off the swg,
don't add any bleach. Write down your FC level before bedtime. Test again, first thing in the a.m. and compare the results - do this before the sun hits the pool. If your FC is holding, we can rule out organics as the source of the cloudy water. Let us know those results.
Ok, keeping my fingers crossed we can find you a solution this weekend.
