The pool was finished in the late summer, we enjoyed it for a few weekends, tested the water with the red/yellow test kit, but that's about it, it never needed much adjustment. Over the winter, it was uncovered, we skimmed lots of leaves, vacuumed a few times, and had 2 bouts with green algae.
First round (Thanksgiving) I dumped half a bag of Chlor Brite in, scrubbed with the wall brush, ran superchlorinate for 48 hrs, and the green went away. 2nd time, I brought a sample to Leslie's, they blew my mind with the ABC's of pool chemistry, but basically told me I could get by until pool season by simply increasing pump run time and possibly cleaning out my cartridge filters. Turned out, the filters were pretty nasty, even though the pool co. cleaned then right after construction. With clean filters and 1-2 days of superchlorinate, the water was crystal clear again. But...I had the water analysis sheet, and lots of numbers...got me to researching on the internet, and I found this site.
So since then, I've been doing some online homework, but would like to run it past the collective experts here. I got Leslie's to run another test today:
I knew from the Thanksgiving analysis that there was no CYA in there, report says I need 9lb7oz. Is all solid CYA the same? Its pretty pricey at Leslies, I can get it from Leslies.com cheaper with the online coupon code SAVE15. Walmart didn't have large qty's at the store, but found it online at walmart.com thru Wayfair. Amazon also has the same product, and the online review says it is junk. http://www.amazon.com/Swim-Time-7-lb...=cm_cr_pr_pb_i
Leslie guy said first thing I need to do is get the TA up, by adding 20lbs6oz of Alkalinity Up (baking soda). I will do that once this rain blows thru.
Then add CYA, test with my red/yellow kit , not worry about CH or PHOS, maybe bring a sample back to Leslies in a couple weeks.
Final question...how come the salt level shown by my pool monitor is always higher than what Leslies measures/ They showed 2600, mine says 3000. Over thanksgiving, they showed 1800, I think the pool monitor said 2800 or so. I guess as long as I have good FC, I'm safe.