Hey all. Haven't been back much yet this year, had my best start up ever, pool is fantastic and trouble free
However my dad just built a new house, in town where high alkalinity is an issue, and had a 12k gal IG vinyl liner pool installed. We used sticks until his CYA hit 40, now it's 6% SHC all the way. Water looks great, but I'm fine tuning his alkalinity so we can add borates for PH stability and water quality. Alk at start up was 240, I have it down to 160 after only about 1 week, so need to get some stuff ordered so we're ready to go. I also need to test and top off my borates.
Have read with interest about adding boric acid with a bit of mule team 20 as it's apparently PH neutral, however Jason's excellent calculator doesn't have this mix as choice unless I've missed it. For a 12k gal pool with 0 ppm borates, how much of each will I need to add to get the desired 50ppm concentration with no impact on PH?
Also, anyone have a quick link to a good deal on boric acid?