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CYA Level
Or always perform the test under the same light source, whether outdoors with back to the sun or whatever, or under a 4’ fluorescent garage light as I do.- revitup
- Post #5
- Forum: Spas and Hot Tubs
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Water still slightly yellow
Seems there has to be some other contributor besides .1 ppm iron and chlorine. My pool and tap water test at .1 ppm iron and the pool water is not yellow. Are you using plain liquid bleach? What's in the Metal Gon you're adding?- revitup
- Post #7
- Forum: Spas and Hot Tubs
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Water still slightly yellow
You seem surprised that your tap water has .1 ppm iron. That seems pretty low to me. My water company calls that ‘negligible’. I’d be curious if anyone’s water, either tap or pool, has tested lower.- revitup
- Post #2
- Forum: Spas and Hot Tubs
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Warning: gross. If you haven’t eaten breakfast yet, don’t look!
Wow, never had a hot tub and never been in one but after reading this that won’t be changing anytime soon!- revitup
- Post #14
- Forum: Spas and Hot Tubs