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Unfortunately yes, but this guy bought pure copper sulfate :hammer: Theoretically the algaecide that most stores sell over here are copper free

Oh I see now. Also my mom confirmed today that the guy who take care of the pool use some copper sulfate but she doesn’t know how much o_O maybe that’s why the green stains now. Replacing the water will also help with copper?

The FC went from 9 at night to 7,5 in the morning. ph still at 8 but I’m noticing some green stains and also some bubbles after the filter run. Yes, it was half tap half pool. A 4th test and got 100 again according to picture attached.

Hey @Mdragger88 ! I just performed the CYA 3 times today: 1. it gave me above 100 2. I performed according to the recommendations of filling with tap water and then x 2 = 160 3. I performed again just normal with 7,5 ml of pool water and got 100 I don’t know which one to trust but is near or...

Another thing to check out.. Thanks a lot

You hit the target now that I think.. she continually puts chlorine puts, since the beginning.. over here pool caretakers use like every chemical sold in stores (clarifier, algaecide, chlorine puts). I will give it a try. I now realized that after exiting of the pool, some green stains remains...

Lol my mom is a believer of chlorine pills

It seems good today but only chemistry now what’s happening underneath lol

Thank you very much @Mdragger88 ! I think I will try draining and refill first. For the PH, I also bought the ph meter with the tf-100 kit, calibrated and got 7,8 value. I’ll try the oclt today :salut:

Hey Mdragger, First, thanks for taking time and happy new year. Answering your question, I don’t see algae as far as I know but I think is a little little bit cloudy, almost imperceptible with some little white stuff floating on the opposite site of the return. I don’t know if it something...

Lol, exactly Jim but it is the price to stick with tfp philosophy. Which will be the best method to crush it back into powder? Also, just some new numbers I took early in the morning before anyone got into the pool: My CYA levels are higher than yesterday (if yesterday results are reliable...

First at all, Happy new Year TFP folks! Just wanted to talk about my first experience with hands on the TF-100 Pro (I ordered it last year in February, came by ship to my country in June and due to work issues just now that I can put hands on it): Instructions clear and also watched some...