Based off my other two threads, I replaced about 1/2 my water and got CYA down to 35-40. Before I found this site I had purchased some dichlor Bioguard shock from pool store, after they repeatedly told me the shock contained no CYA...I called Bioguard to confirm this and was told the indeed bioguard smart shock contains CYA (supposedly 3.6ppm CYA for every 10ppm Cl). Strike 1 pool store.....
Before I went to return bioguard shock to pool store I tested my water myself.
CYA 35-40, FC 8, CC 0, TA 110, CH 215, Ph 7.4.
For sh** and giggles I had the pool store run there test again about 1.5 hours later.
CYA 42, FC 5.1, TC 4.7, TA 93, Adjusted TA 80, CH 226, ph 7.5
They wanted me to increase my adjusted TA to the 125-150 range. What exactly is adjusted TA compared to regular TA first of all? Everything I have read for a fiberglass pool, a TA in the range of 70-120 is optimal. Is adjusted TA something to worry about, or am I fine with my tested TA in the 90-110 range? I suspect adjusted TA is used to sell more chemicals. But wanted to get the skinny.
They then wanted me to add another 2 lbs of smart shock to the pool.....something about chlorine lock...which from what I've gathered is a bunch of B.S. ****, my FC level was at 4.7 (well within the range taking into account the CYA/Cl chart and I've always tested 0 for CC even while slamming. I just got done SLAMMING, and passed the OCLT test 1.5 days ago with flying colors (0 ppm loss, clear water). I've been maintaining cl between 3-7 ever since.
I didn't purchased anything from the pool store. But I wanted to confirm that my current chem levels are doing fine, and as long as my cl stays within the 3-7 range based on my 40ish CYA I'm good.
Thanks for the help everyone, I'm new at this and still trying to figure things out. Getting a pretty good education over the last week, no doubt!