Question on using Taylor 2006C Drop Tests

[reetriever]

Hello Everyone,

When I am testing using drop tests with Taylor what do I consider my end point? For example: If testing alkalinity, at drop 10 the water turns red, at 11 drops it turns darker red, at 12 drops there is no change. Do I call it 100, 110, or go between the two, and call it 105? I have had, and used this kit for a couple years, but was never clear on this. Thank you.

 

[mknauss]

Extended Test Kit Directions Archives

www.troublefreepool.com

Continue adding drops as long as the color continues changing. The final drop, that does not change the color any further, does not count.

 

[titleistseemore]

When there is no change in color or intensity. So it would be 110.

 

[generessler]

I'm no expert, but have seen posted here before that for all tests except salt, it's the drop at which color change is complete. So in your example, 11. No interpolation. For salt it's the drop that first causes a change. When doing the DPD test you don't want to add an extra drop past clear because that will skew the CC test.

 

[reetriever]

I'm no expert, but have seen posted here before that for all tests except salt, it's the drop at which color change is complete. So in your example, 11. No interpolation. For salt it's the drop that first causes a change. When doing the DPD test you don't want to add an extra drop past clear because that will skew the CC test.

Thanks for the info on the DPD, and CC. I did not know about the extra drop in that test.

 

[reetriever]

Thank you for the replies everyone. This clears things up for me.