Lamotte uses the winkler method it is ok for DO. I feel the Laguna kit is a piece of junk , it is not accurate enough to get you much useful informatoin but for sure not godo enough to monitor hardness. You will not need to test hardness/alkalinity but once every year at most if you get it above 20 ppm with enough lime added or it is above that level naturally in your area. dissolved Oxygen (DO) can be tracked daily if you like same as pH. No real reason to track ammonia, nitirite, nitrate in most cases.

So I suggest getting a lab (county extension)to run your results so it is accurate on alkalinity/hardness. Then sure grab the lamotte kit to have it for DO readings as needed.


Greg Grimes
www.lakework.com