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I'm posting this in the Just Getting Started forum since most of the questions I've seen re problems with brown water in the pool and yellow water in a well that feeds it seem to be here. I'm a newbie to TFP and certainly no chemist, but I have considerable experience with well water since...

I'm getting conflicting readings with my new TF-100 test kit. ph = 7.2 TA = 80 CYA = 70 FC = 24 CC = 2 So far so good. The TC is what I expected, as I shocked two days ago to recover from algae. (And the TA sample turned to yellow instead of red, which I understand also indicates high...

I registered with TFP back in May, posted a question, got LOTS of good responses . . . .and when I went to update things yesterday, I found I couldn't log in. (Don't know what happened --- even checked my old emails for the authentication email, but could find nothing from TFP. Weird.) Anyway...

Hope I'm the right/best forum! I’m unable to get my pool back to blue. It’s currently very green but not turbid (you can see the bottom at 6’). Here’s the situation and history: 1. The pool is ceramic tile, 17k gal fresh water, in-ground. 2. I live in Brazil, and the pool is about 100yds from...