Thanks for the reply. My cover is a safety cover which does let some light through so I thought I would bring the CYA back up to my normal level of 40. If it is no harm I am going to do that and add some chlorine.
Thanks for the reply. My cover is a safety cover which does let some light through so I thought I would bring the CYA back up to my normal level of 40. If it is no harm I am going to do that and add some chlorine.
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