I have a 17,500 gallon Gunite chlorine pool that was finished in October of 2020 (Central Texas). It has an attached spa with overflow waterfall and a heater. I’ve been using the TFT-100 to test and manage chemicals myself for the past couple of months. I have the pH probe (calibrated) that came with my kit, but it never reads below 7.9, even when the reagent test does. So I don’t trust it completely. I have a new Apera one coming this week
I’ve read a lot of information about pH and alkalinity but am looking for advice here. I notice my pH is constantly drifting to 8.2-8.3. Even when I use Pool Math to dose the muriatic acid to get to 7.6, it almost never reaches that and will bounce back up within 48 hours.
Pool math says my alkalinity is “recommended” to be 50-90 and “ideal” is 60-80. So I’m in that range. In fact, my TA read 60 yesterday for the first time (I’m sure it’s from the every other day acid dosing I’m having to do). usually it’s been reading 70-80.
Advice on how to handle such constant pH swings? Is there something I am not attending to here?
Latest readings attached.
I’ve read a lot of information about pH and alkalinity but am looking for advice here. I notice my pH is constantly drifting to 8.2-8.3. Even when I use Pool Math to dose the muriatic acid to get to 7.6, it almost never reaches that and will bounce back up within 48 hours.
Pool math says my alkalinity is “recommended” to be 50-90 and “ideal” is 60-80. So I’m in that range. In fact, my TA read 60 yesterday for the first time (I’m sure it’s from the every other day acid dosing I’m having to do). usually it’s been reading 70-80.
Advice on how to handle such constant pH swings? Is there something I am not attending to here?
Latest readings attached.