So glad you are at 7.2! Always be conservative with additions. Better to undershoot than overshoot!
Btw, since you have a plaster finish pool, you'll want to pay attention to the CSI number in the link I provided.
22'x40' Grecian Lazy L 20K gal IG vinyl pool; Aqua Rite SWCG T15 cell; Hayward Pro Grid 6020 DE filter; Hayward Superpump 1hp pump; 12 hrs; Taylor K-2006; city; PF:6
So glad you are at 7.2! Always be conservative with additions. Better to undershoot than overshoot!
26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO
^+1
26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO
Should I bother trying to raise my TA? It's currently 40.
22'x40' Grecian Lazy L 20K gal IG vinyl pool; Aqua Rite SWCG T15 cell; Hayward Pro Grid 6020 DE filter; Hayward Superpump 1hp pump; 12 hrs; Taylor K-2006; city; PF:6
I'll throw in my two cents for what it's worth.
From what I was told (by chem geek), your CSI should be between -0.3 and +0.3. I try to shoot for the middle of all the recommendations on that page. For your setup I would probably go with:
FC - 3 or 4
pH - 7.6
TA - 80
CH - 300
CYA - 40
Assuming no SWCG and with a temp of 65 your CSI would be -.11 which the calculator will tell you the water is balanced. If your water ever got up to 100, your CSI wold be +.19 which would still be balanced. Right now with the current numbers you've input, "Corrosion of plaster is likely". If you go the other way and your CSI is +.3 or greater "Scaling is possible".
I played with that calculator quite a bit to figure out what would be best for my spa and for the pool. Seems to be working out pretty well for me.
Figure out what works best for you and then try to hold those numbers.
Hope I didn't over step my boundaries. Good luck!
36'x20' Freeform, IG - 13k gal, Spa - 800 gal, Diamond Brite, Intelliflo VS pump, TR-140C sand filter, Mastertemp 400k BTU heater, 2HP Whisperflo pump (waterfall), Pool Pilot Digital RC-42 SWCG, K-2006 Test Kit
22'x40' Grecian Lazy L 20K gal IG vinyl pool; Aqua Rite SWCG T15 cell; Hayward Pro Grid 6020 DE filter; Hayward Superpump 1hp pump; 12 hrs; Taylor K-2006; city; PF:6
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