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I've had my pool for about 25 yrs now. I'm usually very good with the chemistry. I have read on this site and believed (all along) that the only way you can lower CYA is to drain water and add more, thus diluting the concentration. I just opened my pool after having closed it last year with a...

I have been using my TF-100 test kit for about 4 yrs now and seemingly, everything has been fine. I just treated my pool for pink algae using yellow-out (which I have used before w/no problems). I am completely done with the treatment and now normalizing my chemicals. I did a chlorine test...

This is going to be a long post, but I've been at it for a long time. I thank any and all in advance for any help they can give. I have some algae/stain problems. I'm not sure which they are so I'll post information and photos and hopefully someone will have experienced one of these and...

What damage might I cause to my gunite pool by putting 4 gallons of shock into my 32,000 gal pool WITHOUT running my filter?? Before the start of this season, I shocked my pool as I would normally when I open it. I put in 3-4 gallons of shock into my green mucky pool a month or so before I...