I have a strange problem. The PH was on the high side so we bought some muriatic Acid 31.45% (see attached picture).
From my last complete analysis:
I was very nervous about manipulating acid so I read a lot of posts on the subject and opted for no measurement. I added roughly 250 ml of MA with the pump on max. My husband added bleach later in the day. The amount of MA is based on the top area of the Pool Math page (beside my numbers and the TPF target).
So I added more MA, roughly 300-400ml. The pump is still on max.Since I had time, I retested the PH 30 minutes after the MA addition to the pool:
So I added a bit more of MA, roughly 100ml then retested about 30 minutes later:
No more time before office so I added my daily dose of bleach and turn the pump to low.
Here are my numbers for this morning:
Based on Pool math I should still add close to 300ml of MA to the pool to bring the PH down to 7.5. If I do so, I will have added a whole 1 liter of MA 31.45% to the pool.
Does this make any sense? Is something else going on here? I will wait for feedback before adding more MA to the pool.