CYA Test with Taylor K2006 - CYA over 200!

[mas985]

There's at least one potential problem with using tap water as your diluter. The CYA test is basically a turbidity test. Any turbidity in your tap water will add to that resulting from the interaction of the test reagent and the CYA in the pool water and may give you an inflated reading. (I think.)

If that were true, then wouldn't most CYA tests would be invalid since tap water is used as fill water?

[KurtV]

I don't think so. I imagine that the sediment (or whatever was causing the turbidity in the fill water) would be filtered out and/or oxidized. I suppose that cloudy fill water could give a falsely high CYA reading temporarily, but not once you had the water cleared up.