For the last month my water had been pretty much the same:
The ph started spiking so I put MA I. The pool and took to 7.2
TA went 90
And oddly FC went to 6
48 hours later FC is at 8, ph is back to 7.6 and TA is 100
The only other change I made was I changed my de filter grids out and went from using 1 filter to two.
Is there any reason my FC should spike like this? I haven't changed anything on my SWG or added chlorine.
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