Does anyone have any comments on this stuff?
CYA Removal
- Thread starter JKB121
- Start date
You can search the forum on this. A lot of mixed reviews. I considered it several years back and opted not to use it and I had a friend use it (against my advice) and it did not make any significant difference. I think it cost him about $70.
That's why I asked.... Saw many mixed reviews all over the place. Seemed too good to be true.
... .and people who have tested here and reported results proved that!
TexEdmond
Gold Supporter
- Jun 16, 2021
- 661
- Pool Size
- 25500
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
I've also heard another good way to eliminate CYA is to let your FC drop to zero for extended periods of time and a certain bacterial will eventually grow eat it and create a foam on the pool surface. But that might be more trouble than it's worth. Probably best to do a partial drain / refill or swap water with the vinyl liner you've got.
What is your CYA number?
That’s pretty much what that stuff does. Except you add it on purpose instead of hoping it grows for you. There is a roughly 10% success rate and most just get algae from running 0 FC. It works for just enough people that we can’t wholeheartedly rule it out as a scam, but we certainly can’t recommend it either. It’s very possible that it works half (?) the time but user error keeps it from working more often. Either way, it doesn’t work often.
Funny, even my pool store guy told me it didn’t work.That’s pretty much what that stuff does. Except you add it on purpose instead of hoping it grows for you. There is a roughly 10% success rate and most just get algae from running 0 FC. It works for just enough people that we can’t wholeheartedly rule it out as a scam, but we certainly can’t recommend it either. It’s very possible that it works half (?) the time but user error keeps it from working more often. Either way, it doesn’t work often.
definitely mixed reviews. I looked at trying it but you have to take your FC down to nearly 0, maybe 1 at the most, and that makes me very nervous about letting it get that low. If it doesn't work and takes a few days, you're risking an algae bloom. then you need to either drain the pool anyways, or try to SLAM with a still high CYA which is not feasible from a chlorine demand perspective. Drain and refill is still the best tried and true method for lower CYA.
I'm at 140 now..... I'd like to get back to 40.
Scratch that.... tested CYA this morning.... I'm at 212. Uggh.
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ColorQ digital tester. ColorQ high limit is 125, so I mixed equal parts of pool water and tap water and used that sample to get 106. 106 X 2 = 212.
And you aren't finding anything suspicious about it telling you that your CYA level jumped 72 ppm in a matter of days?
The 140 was in the Spring. The CYA test is a pain to run so I didn't run it this summer. I simply expected the CYA to creep up over the summer. All the other numbers stayed pretty solid. That increase was since Mid April. I'm shocked to see 212. I've got 2 different boxes of CYA tablets with an expiration of over 2 years. I ran the diluted test twice and both came back exactly at 106.
Flying Tivo
TFP Guide
- Jan 24, 2017
- 2,969
- Pool Size
- 7500
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Fix it and go liquid Chlorine!!!! The fix it part is causing me worry.
Trichlor tablets don't expire.
Next time you're asked what your levels are, the person requesting the information is not asking what the numbers were five months ago.
Next time you're asked what your levels are, the person requesting the information is not asking what the numbers were five months ago.
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