R-0600 using DPD kit?

[jtw114]

I’m awaiting replacement r-0870 and 871 via mail but the shipment is running late and I’m out.

The pool store had neither, so I grabbed some r-0600

I found a post on here that gives some color descriptions for the TC ranges but of course it assumes you have the OTO test kit and simply “fill water to line” instructions.

Does anyone know what line (10 or 25) I should use for water, with 5 drops of r-0600 to get a decent TC value?

Thanks!

 

[Richard320]

I believe the color blocks are 7 ml. I also know it's an indicator, mot a reaction, so it doesn't have to be exact. Besides, you're looking at yellow, nearly fluorescent yellow, schoolbus yellow, and so on. You should be able to tell those.

 

[jtw114]

Thanks for the quick reply!
My cya is up around 50 so I’m definitely looking for darker yellow to be adequate versus lighter.