Hello! Year 3 of my pool ownership. Have become savvy on chemistry but have NOT tried borates yet. Have a 13,600 gal salt pool and ph keeps rising all the time. Southeast Michigan. Would like to add boric acid so I don’t have to add a ton of muriatic acid after. Pool calculators online say I would need 45 lbs of boric acid! Is this legit..45 pounds??? That’s like 12ea $20 bags for $240. I just need a sanity check that this is legit??? Benefits seems amazing. If I don’t have to add acid every week to keep ph in check, and also get sparkling looking water I am down. But want to make sure I am making a good investment. Thanks!