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I was reading the recommended levels and just was curious as to why you want TA to be 100-150 when using trichlor tablets? Thanks!

My new TF-100 got here today! :D FC 5.5 CC 1.5 PH 7.4 CH 250 TA 135 CYA 25 CYA level was directly between 20 and 30, so I assumed CYA of 25. Starting SLAM. Pool math said shock level is 10, so I added 28 oz of cal-hypo 65% to bring the FC level to 10. Waited about 30...

Posted this in one of my previous threads, but I thought it was worth sharing on its own. Yesterday morning I got three sample bottles and took a sample to each of the three pool stores in my area. The sample water was taken exactly the same at the same time. All three pool store tests were...

I am having trouble determining my CYA level and thus shock level. The first results: 6/6/14 TA 90 Ph 7.8 Cya 100 Fc 0 Tc 0 Was instructed to put in 15 lbs of shock and wait 30 mins and do 20oz of algae dies, then put in tablets Next test 6/9/14 Ta 80 Ph 7.2 Cya 100 Fc 0 Tc 0 Copper 0.5...