sandsquid

Thanks Polyvue. My current pressure at the filter is 10 PSI. When it gets to about 20 PSI, I typically backwash it. I am using HTH Shock 'n Swim #3 with CALCIUM HYPOCHLORITE 47.6%, OTHER INGREDIENTS 52.4%, TOTAL 100%, MINIMUM AVAILABLE CHLORINE 45%. (43% Potassium Monopersulfate) (that's all I can find for ingredients) I use HTH Liquid Chlorinator with SODIUM HYPOCHLORITE 10%, OTHER 90%, once the pool gets balanced, then I will use the HTH hockey pucks. I believe I am getting a CYA reading, however it appears to be very low and doesn't even come close to the colors on the strips. I will try a different brand of test strips to see if there is any difference. I am not sure why I wouldn't be getting a CYA reading, or why it would be very low. I went and checked on the pool this morning first thing. I do not see any more algae at the surface like I had been seeing. I think I may have won that battle.

I started to opened my pool about 2 weeks ago, and my water levels were better than expected. I had a issue with my sand filter automatically backwashing while it was on filter which resulted in the chemicals being wasted and no circulation. Once I discovered the backwash issue and resolved it, my pool started growing algae and turned a hint of green. I instantly put in 3lbs of shock for my pool size approx. 12000 gallons. Then the water became cloudy (no longer green). I am still seeing very small amounts of algae heading towards the skimmer, but I still keep fighting that issue as well (trying to shock the you know what out of it) and now the cloudy water issue. My readings are not changing and I am not able to get any kind of CYA reading. I am stuck and not sure how to proceed. Any suggestions would be greatly appreciated. Thanks! TC FC pH TA TH CYA Date Time Notes: 1 0.5 7.5 120 300 0 6/19/2010 1630 Vacuumed @ 1600 - Added 3 lbs of Shock at 1722 (full sun) 2 1 7.4 120 300 0 6/20/2010 1430 vacuumed @ 1330 - added stabilizer condition at 1500 2 lbs. - added clarifyer @ 1530 - vacummed walls @ 1630 (full sun) 0.5 0.5 7.4 120 300 0 6/21/2010 1800 Add 128oz bottle of liquid clorinator and 1lb of stabailzer at 1830 (overcast partly sunny) 0.5 1 7.5 120 300 0 6/22/2010 1950 Full Sun temp. 95

I've been keeping a *** record over the last few days of my pool. However, whatever I am doing, nothing seems to work. I opened my pool this summer, and my water levels were better than expected. I had a issue with my filter automatically backwashing while it was on filter which resulted in the chemicals being wasted. Once I discovered the backwash issue and resolved it, my pool started growing alge and turned a hint of green. I instanly put in 3lbs of shock for my pool size approx. 12000 gallons. Then the water became cloudy. I am still seeing very small amounts of algea heading towards the skimmer, but I still keep fighting that issue as well as now the cloudy water issue. Total Chlorine (ppm) Free Chlorine/Bromine (ppm) pH Total Alkalinity (ppm) Total Hardness as CaCO3 (ppm) Cyanuric Acid (ppm) Date Time Notes: 1 0.5 7.5 120 500 0 6/19/2010 1630 Vacuumed @ 1600 - Added 3 lbs of Shock at 1722 (full sun) 2 1 7.4 120 250 0 6/20/2010 1430 vacuumed @ 1330 - added stabilizer condition at 1500 2 lbs. - added clarifyer @ 1530 - vacummed walls @ 1630 (full sun) 0.5 0.5 7.4 100 300 0 6/21/2010 1800 Add 12boz of liquid clorinator and 1lb of stabailzer at 1830 (overcast partly sunny) 0.5 1 7.5 120 250 0 6/22/2010 1950 Full Sun temp. 95