How to test CaRx alkalinity?

RaymondsWorlddd · Mar 12, 2023

I would like to test the alk of the effluent from my CaRx but the Hanna checker only goes to 20. I’ve looked online and the Salifert only goes to 15.

What is there to use that will go as high as 30-40?

blaxsun · Mar 13, 2023

None of the standard hobby tests that I can think of.

homer1475 · Mar 13, 2023

Dilute the sample, then multiply the result by how much you diluted the sample by.

Randy Holmes-Farley · Mar 13, 2023

With Salifert or any titration test, just add more titrant to get to the endpoint and add all the volume added together.

As noted, dilution with RO/DI will also work, through I might not do that with the Hanna.