Newbie here, First Post

[Watermom]

Try this:

Testing Without a Good Kit

[awfletch]

Using this 2way drop kit. Its supposed to take 4 drops of orthotolidine to register a color match at normal chlorine levels, so I got the smart Idea to only add one drop since my FC technically should be over 16 and only one drop color matched a 4. Does this mean that my FC is really reading well above 16? Or am I doing things with that test kit that it isn't designed to do?

[Watermom]

I'm not sure about your testing method. Get some distilled water and try the dilution method I mentioned in the link above. (Can't use tap water.)