This is the mystery I can’t figure out. I change out Four Filter Socks on Three Aquariums, every three to four days. They are Sprayed off in a clean laundry sink, and placed in a Regular Clorox Solution overnight. They are thoroughly rinsed off the next day, and hung up to dry. I have enough for four changes. When I change out the two socks on my 120 Gallon, the LifeReef Skimmer overflows, when installing a clean filter sock, unless I shut it down for a half hour. It will do this with just one filter sock, on this Aquarium. It even did this when installing a brand new filter sock, that was just rinsed and installed. The removal of the dirty filter sock has nothing to do with this. Also on my 65 gallon, with a single Filter Sock, the same model of LifeReef Skimmer, it doesn’t do this.
