Well, before you go ahead and do anything, you are going to need a good (drops-based) test kit. The one Ben sells here is the best i've found, it will do everything you need and do it well. If you can't wait for the kit, you'll need a Phenol red/OTO test kit.

The 15 ppm that you've heard is 15 ppm of chlorine (Cl). That's what's needed to chew up all that baqua-goop. However, high Cl levels are hard to measure with OTO, so you'll need to either:

a. dilute your sample, then multipy your results by the number of dilutions
b. buy a DPD-FAS Cl test kit, which will allow you to accurately read your Cl levels directly.

I strongly reccomend getting the DPD-FAS kit. It's considerably easier to read than the OTO test.

What i'd reccomend now is starting your own thread (instead of tagging on someone else's) that way we can keep you separate from the rest of the folks.


Michael