I have cut all ties with my pool shop after getting a ton of misleading advice (& unnecessary products!) from my pool shop. Pool shop suggested I use CYA-free shock, as I had 100ppm CYA. I now have high CH with all the cal hypo I've thrown in. I've switched to the TFPC method & I seem to be adding a lot of muriatic acid to keep the pH stable, around 12-15oz / 2days to keep pH @ 7.4-7.6.
Pool chem results are:
Size: 18,000 gal
Is this a typical amount of acid? Do I have something else wrong?