pH, pumping running continuously during freeze warning

Hello to all

we are experiencing below 34 for 48+ hrs. My scupper pump snd filter pump (spa spiller too) are both running a lot and i know the aeration is going to raise pH thru the roof.

Any thoughts or suggestions on how to best manage the pH ?

thank you and i wish all of you the best that have been hit real hard by this winter freeze ! tstex