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I’ve also found the same thing! Brought FC to 5ish and within a day had clear water - EVEN when CC was 0 and I passed OCLT. Thanks @proavia for participating here :)

Awesome, thanks, I’ll live a bit higher, try out another OCLT (when this crazy rain cools down a bit), and hope for some clarity (of pool water …. And mind 🤪) Thanks for all the feedback.

Great! When you say “upper target number”, do you mean SLAM target FC based on CYA of 40, or just the upper limit of what my baseline should be (the 5-7 you mentioned previously). Does the lower starting FC make the “passing” of an OCLT test inaccurate? Per the guide here, it says anything...

Hi there - thanks for this info. I’ll start aiming for higher sitting FC levels. Are you thinking my OCLT was perhaps inaccurate because starting FC was too low? And that my clarity issue is still from an algae problem? I’ll bump up FC today and do another OCLT tonight.

I use sodium hypochlorite 10%

thanks for responding - I thought my poolmath app data was accessible, but I posted my full set of #'s above.... I'm perplexed because I've got (what I think) is good chems, but a still-hazy pool

Hi there - I believe my poolmath app is viewable with data, but if not, here's my recent full set: FC 5.2 ph: 7.4 TA 60 Ch 350 CYA 30-40 CSI 0.18 temp 74 and just passed another OCLT last night

Hi all - I’m kinda at the end of my knowledge here, so coming here to troubleshoot. I have balanced water, but my clarity isn’t great. In previous years, I’ve always had the “I can see the type of screw in my bottom drain” clarity, but I just can’t get there this year. After opening the...

I’m no expert by any means, but I just had something very similar happen when I was cleaning up my swamp - a sudden decrease in my CYA levels when I hit FC of 30. I went from CYA of 60ish down to 30ish, and then adjusted my goal slam chlorine accordingly. I read some responses / experiences...

Update on the swamp: I can now see my vacuum head about 6ft down! Pool owner patience is such a thing! I finally have CC of 0, and holding chlorine a bit better ...... had a weird drop in my CYA, which I can only attribute to my FC level getting high (per prior suggestions /experience...

Yes, I've been making small progress in clarity .... I'll test CYA again this am after I get more reagent (been BLOWING through reagents, good gravy, even using 10ml samples where I can). Initially, I was concerned that my foggy water was affecting reading, but, at someone's advice, I used just...

I didn’t read further down to see if you had other suggestions (yet) but I buy my calcium chloride dihydrate from a farm / ranch supply store (it’s de-icer) in a 50#bag for $33.

Yes, my technique is combine water and Reagan’s, wait 30secs, then shake 30secs, hold at waist level with back to sun, add some, look away, add more, look away, etc. I was concerned initially that maybe my cloudy pool water was making my results high at 50 or 60, but posted here to verify, got...

The saga continues ..... I‘m a few days into a SLAM from a tadpole oasis to (hopefully) a human oasis, and was seeing cya in the 50-60s. I finally got up to FC of 24 or so last night, but today, midday, had a cya level of ~20-30. Did some reading here and saw that sometimes cya can drop when...

Thank you! Good idea with pole in water. I’ll try that. I backwashed right after I went from green to blue, had it up to 25psi and settled back down to 17/18. I even did it once when it was at 17 jsut to see what it looked like coming out and it was mildly cloudy output only for a second...

Thanks! Glad to know it’s not an ammonia (or something else scary) issue. The closest I’ve come to the OCLT is from last night - or maybe the night before (they’re all running together), where I had 18.6FC at 10PMish and 16ish the next am. My filter pressures haven’t been ridiculous...

Hello all. I'm feeling a little sheepish tonight as I've spent the last 4 or 5 days trying to clean up my swamp, and overlooked my CYA to chlorine SLAM value, so have (I think) been chronically UNDER chlorinating during my SLAM. But, I'm also running into some results I don't quite understand...

here she be this evening - I can see the 3rd step down!

Thank you for all of that! no, my dot isn’t obscured from just the regular pool water.... that’s a good way to check, though, thank you. I’m able to see my third step down today, so that’s exciting! I started the process by trying to get the most organic matter out of the pool before adding...

Haha I use the SAME verbiage, and then slightly giggle to myself while I calculate how much I would have spent on their recommendations. Thanks for the reminders on how to accurately do cya test!

Hello all....... as I usually do at the beginning of every season, I take my water sample to the pool store JUST TO REMIND myself of how much I’m saving, how happy I am to not have to go in there all the time, and to see if I’m getting numbers anywhere close to what the pool store computer gets...

Potential Future Robot / Assistive Device Owner here 🙋🏼‍♀️and I’m curious to know.... -what equipment do you have ? -how long have you had it / has it been operational ? -would you purchase it again, or just go back to regular brushing / vacuuming process? THANKS!

Hey all - We're considering getting something a bit more automated than us standing there manually vacuuming our pool. I've JUST begun researching other options, but the numbers and data are OVERWHELMING! Here's what I know, and considerations that will work (and make it "worth it") for us...

I just totally giggled my way through this thread - you’re so entertaining! Who thinks comedy and pool ownership should coincide? @LooLooPoolNoob will star! Congrats on your pool - looks great. Enjoy having your kiddos, and their friends, in your pool under your watch :)

Thank you!

Hey there - I don’t have a ton of experience on this, except that we just did a wash down and new layer of epoxy on our plaster pool. I found Olympic paint company to have EXCELLENT resources for the home DIY-ER, including lots of info on acid washing and wash to remove stains before prepping...