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Change every 4 months.Put in filter that is inline with the pump that is used most.
We have a winner. In my case, I don't have a circ pump so pump #1 runs for filtration. Actually I just put the cartridge inside the skimmer door where both filters are.
Which leads to the next silly question:Why in the filter rather than inside the skimmer door?
I see people go both ways on using Nature 2. Is there a downside to using it? Does it hurt anything to have it in your filter? Just curious.Thanks,Scott
I have one filter that I still can't get the cartridge out of.