Losing chlorine

[CarlD]

I don't trust strips CYA reading. My Hache strips are indicating I have no CYA but the Taylor black dot test indicates it's just under 50ppm. Either I'm reading the strips wrong or the CYA test is wrong. The chlorine tests aren't too bad and I can usually use the pH test safely.

But the CYA, CH and TA tests are worthless. I check 'em anyway so I always know what owners see when they use them.

[joecus]

Is my pool safe to use? Someone mentioned it is unsanitary.

[aylad]

You can use the pool if you're keeping your chlorine between 8-15 ppm, with your CYA at 100. Test for combined chlorine, and if it's less than 0.5 and the pH is between 7.2-7.8, then it's fine to use the pool.

If your chlorine is still higher than that, I would feel ok with using the pool with chlorine levels even up to 15 (this is because the CYA is so high), but I would wear an old suit in case of fading.

If you test the water and have CC greater than 1, or if you've been running the pool for more than a few days with a chlorine level less than 8, then I wouldn't swim in it.

Janet