Chlorine Lock ?

[robbym70]

nix the booklet and watch the vids. Also...the instructions inside the box on the inside label are pretty easy to follow.

With the test tube thingy you have three levels marked on the side. Use the smallest level it will save you in the long run and the measurement is just as good. Fill the tube with water up to the first line. Add two small spoonfuls of the white powder than swirl it around. Then add the titrating agent drop by drop slowly swirling it around after each drop. Multiply the number of drops by .5 and that is your FC measurement. 8 drops of titrating agent = FC of 4 etc etc.

CYA level is key. It will tell you how much chlorine you need to add for both shocking your pool and simply maintaining the levels. Look in Watermom's siggy for links to the "Best Guess Chart" and read the text that goes along with it. This info is key to utilizing the BBB method successfully.

[BigDave]

...the instructions inside the box on the inside label are pretty easy to follow.

True that!

...Use the smallest level it will save you in the long run and the measurement is just as good...

Also true, most of us use the 10ml sample to test chlorine. In fact if one dipper of powder turns the water pink - that's all you need.