6500 gallon ABG, Intex 8110 saltwater chlorine generator (Maximum output of hypochlorous acid equivalent to 0.225 kg (0.495 lb) of free available chlorine per day.), Hayward Xstream CC1000 (80GPM, 100 ft2 filter). Hot and sunny days (100F+).
Got a late start on the pool this year and then was slow to check chemistry so got my deserved algae bloom.
My understanding of the targets for a vinyl SWG ABG pool are:
FC 2-6 ppm
Salt 200-400 ppm ABOVE recommended optimum level (Intex recommends 3000 ppm): 3400
Borates 50 ppm
So, I figure I need to shock ASAP and deal with chemicals the next day. I added Jumbo Slime Bag, shocked with 284 oz 6% chlorox and a bag of Dichlor rated for 10,000 gallons (sorry, did not take good notes here but it was way overkill). Ran SWG for maximum 12 hours.
Cleaned both filter and Slime Bag this morning and turned back on. Pool water still a but cloudy but no longer green and looking pretty good.
Went to buy 20 Mule, Muriatic Acid, and CYA.
Measurements at noon today:
Looks like it did the trick but is going to need some time to get the FC down. Decided to start adding the chemicals.
To raise CYA, I added 30 oz. of CYA which should bring it up to 65, just shy of target as the only way to lower is to remove water. I will retest in a week. Should lower pH by 0.64.
To adjust borates, I assumed they were 0 and added 304 oz. borax and 128 oz. muriatic acid (31.45%). This should raise borates to 40, net raise pH by 0.28, and net raise TA by 14. I plan to add a tad more as needed tomorrow.
To lower TA, I removed the Slime Bag and installed the aerator.
Measurements I hope to see tomorrow:
Normal FC and 0 CC.
pH 7.14 plus whatever aeration causes
TA 114 less whatever aeration less causes
CYA 65 (in a week)
I would like to put the Slime Bag back on once the TA and pH are stabilized at proper levels.
I am hoping for a little pH stability and water clarity to regain the respect of my wife and kids. I have been trying to digest the information in the Pool School but may be screwing something up. What am I missing? Any other recommendations?