🚀 go-pugleaf

In my second post I said: 

> The La Motte test kit gives me a reading of ~400 ppm CaC03 for freshly mixed 
>Instant Ocean.
>

This should be:

The La Motte test kit gives me a reading of ~1000 ppm CaC03 or( ~400 ppm Ca+2) 
for freshly mixed Instant Ocean.>


krogers@javelin.sim.es.com inquires:

> Which of their test kits are you refering to?  In other words, what
> does the label on the box say?


Oh-oh --  does this mean that LaMotte has more than one hardness test kit? I 
simply ordered the Ca hardness test kit from my favorite mail order store.  
I'll check the label when I get home tonight. In the mean time if this rings a 
bell: For sea water, the instructions tell me to add 1 ml of sea water to 12.9 
ml of distilled water. After the titration the instructions tell me to multiply 
the results on the syringe by 12.9 to get ppm of CaCO3 or by 5.19 to get ppm
of Ca+2.  This is how I get 1000 ppm CaCO3 and 400 ppm Ca+2 respectively.

Anyway,  I'm satisfied with the calcium measurement I'm getting. But it bothers 
me that I still can't make sense of the dKH conversion. 

Thanks for the input -- Fernando




Fernando Pineda (fernando@aplcomm.jhuapl.edu)