oh brother, how has this guy not been banned yet?
generally people who read a few things on the internet and then crown themselves subject matter experts
I'm no expert on canisters or any filters. Just the way I understand it canisters can be nitrate factories if not cleaned regularly just the way filter socks can be if not changed out regularly. If you have some information otherwise I'd be interested in reading it, because like I said I'm no expert. Unless you're just limited to insulting someone for thinking they no something.