Which test kit?

[iwannapool]

Thanks for all replies. Without an understanding of what's involved with these water tests it's hard to tell what you need and what you don't. Thanks, again.

[DavidD]

I'll bet his CYA level was through the roof as well! I sure hope it wasn't a vinyl pool or that'd bleach too!

Unfortunately, they had just replaced the liner in the spring. Fortunately, it doesn't appear to have been adversely affected that "we can tell". And yes, his CYA was 100+ and pH read 6.8 but was obviously less. If I remember correctly, we dumped in 4 boxes of Borax


Dave

[CarlD]

Unfortunately, they had just replaced the liner in the spring. Fortunately, it doesn't appear to have been adversely affected that "we can tell". And yes, his CYA was 100+ and pH read 6.8 but was obviously less. If I remember correctly, we dumped in 4 boxes of Borax


Dave

Well, hopefully he didn't weaken it too much with that double whammy--too low pH (another adverse effect of pucks) and way too high FC. Both weaken the liner...he may get a year or two less out of it.

[chem geek]

The good news about his CYA being so high is that it helps mitigate the high FC. A 30 ppm FC with 100 ppm CYA is equivalent in disinfecting chlorine to 9.3 ppm FC with 30 ppm CYA or 0.4 ppm FC with no CYA. So while it is higher than normal, it isn't as damaging as it could be. Of course, with his reports of swimsuits degrading very quickly, it may very well be that his FC was even higher than 30 ppm. You can see how indoor pools without any CYA can very quickly degrade swimsuits with even modest 2 ppm FC. This is what my wife experiences with her swimsuits at our local community center -- they only last one winter season of swimming.

Richard