Hopefully that is what it was, but as mentioned above ensure your FC level remains up above the minimum level at all times. Because IF you don't already have algae growing in there, which you very well could have with the low FC levels, you definitely will if the chlorine level continues to be allowed to drop below minimum.
Let us know what your numbers are in the morning. I'm keeping my fingers crossed that it was nothing serious with the SWG.
Have a wonderful and safe Labor Day.
Let us know what your numbers are in the morning. I'm keeping my fingers crossed that it was nothing serious with the SWG.
Have a wonderful and safe Labor Day.