I am a new pool owner, and I have just switched to using bleach in my pool due to my CYA being at 90. I noticed after adding bleach my PH goes up, and I looked up the PH of bleach and what do you know - it has a high PH. So, is it normal to have to add acid every time I add bleach? I have been adding about 90 oz each day to my pool which is bringing my PH up to around 7.8. Then, I have been adding about 1.5 to 2 cups of acid to keep bringing my PH back down to 7.6. My TA is hanging around 120. I did measure it at 100 the other day after adding acid, but today before my dose of chlorine it was 120. My pool is approximately 18,000 gallons.
I read somewhere that bleach only increases the PH temporarily because acid is produced as chlorine is used up. Is this true and am I just being too quick to add acid? I do think I am a little jumpy because I had that yellow mustard algae already and I am trying to avoid that again.