chlorine drop

TL;DR I can't for the life of me keep my FC up in my 12,000 gallon. Used to use tablets causing skyrocketing CYA. Just balanced everything best I could, and installed a SWCG rated for 25,000g, still waking up with 0 FC in the morning. Hello TFP. This is my first time here, but I probably...

I've been having issues keeping the chlorine in the pool ever since the water has been reset after 1.5yr of stagnant water and I've never quite experienced this unless I'm not measuring things right. In the past, I used to add less than half a gallon of liquid 10% chlorine daily and that used...

Hey everyone, I’m Brian and new to the forum. We recently moved into our NJ house with an in ground 27k gallon pool. This year we opened 4 weeks ago and as of last week we can’t get the chlorine levels up. The pool is clear and we had the water tested at Leslie’s who said the water was good...

I wanted to bump up my calcium by about 80 or 100 ppm. I did so late at night, several hours after topping off the chlorine to 6 ppm. In the morning the FC was essentially 0 ppm. I added enough liquid chlorine to bring it back up to 6 ppm, then a few hours later it was around 1 ppm. Finally...

Hello — I shocked my pool last night around 8pm, added 56% cal hypo and some bleach, enough to bring the FC levels to 20 to 30ppm (getting rid of black algae). Brushed the pool good that evening twice. At 7am the next day (11 hours later), checked the FC levels twice taking samples from 2...