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Hello folks, it's been a while since I posted here. Recently the chlorine dipped low for several days, maybe a week or more, and this staining took over large (and I mean LARGE) sections of the grout in between the tiles. It doesn't appear to be much (if at all) on the tile itself, just the...

I recently did a partial drain and refill to get my 100+ cya levels down to a manageable level. Been using mostly bleach and cal hypo as main sources of Chlorine since then. Current numbers: FC 4.2 CC 0 pH 7.5 - 7.6 TA 40 CH 270 CYA 30 (or maybe even less) Here's the thing. After the drain I...

I tend to be a paranoid person when it comes to my children's safety. My worst fear is either of these liquids creating a pocket or saturated area that someone swims through and has irreversible eye damage (or something else equally nasty). 1) I guess the best way to look at this is, what...

If you google this question or if you look at the instructions for some calcium chloride packages you will get the standard answer that seems most common, which is about 1.25 lbs to raise 10 ppm in 10,000 gallons. Some other sources say 1 - 1.25 lbs to raise 10 in 10k. Pool Math...

I thought I understood what the target FC levels meant, and I know the specific numbers are related to your cya level, but the more I think about it the more I think I need a clarification. I'm assuming that you should shoot to keep your FC at the the "target FC" number and never let the FC...

Little background: I have been taking care of my pool solo for 2 little more than 2 years, but haven't been as consistent as I should be. The pool may have had very low TA levels and calcium levels for an extended period of time. My current numbers are: FC - fluctuates daily but right now...

It seems the recommended CH levels have a huge range. I have a tiled pool. Test results (taylor 2006): FC - 1.2-1.4 (low because I'm doing a bioactive test to try to lower CYA) CC - 0-0.2 pH - 7.4 TA - 140 CH - 110 CYA - 110 I'm currently increasing CH with calcium chloride, but I'm not sure...

Hello all. First post. I've been taking care of my own pool for almost 2 years now, and I wish I had been more consistent at the start. I'm here to learn consistency and fight some problems that have developed. Test results (taylor 2006): FC - 1.2-1.4 (Was 3.6 two days ago. I'm trying to keep...