Has anyone ever had a sudden ph drop with running outside air to their skimmer?
Last night at 3am, my ph took a detour down sharply. It had been running very steady up to that point with minimal diurnal swings.
Alk is a steady 7.6-7.8
Nothing seems to be malfunctioning - kalk dosing on a pump, no ATO, skimmer running, powerhead running.
Initially I thought the ph probe was malfunctioning, but I checked with another calibrated probe and it's reading the same.
Something in the outside air???
Last night at 3am, my ph took a detour down sharply. It had been running very steady up to that point with minimal diurnal swings.
Alk is a steady 7.6-7.8
Nothing seems to be malfunctioning - kalk dosing on a pump, no ATO, skimmer running, powerhead running.
Initially I thought the ph probe was malfunctioning, but I checked with another calibrated probe and it's reading the same.
Something in the outside air???