Interestingly, the manual says that ceramic rings are to disrupt the flow of the water NOT to act as biological filtration.
hellohefalump said:I've had mine a while now. I've got used to the noise, and tetratec were very good about replacing the hose adaptor, which was letting a lot of air in. The air problem appears to be fixed now (still early days, replaced it yesterday!).
My biggest gripe with it though, is it was very difficult to get out of the cupboard, full. It's extremely heavy with no obvious place to hold onto, and in the end I slid it out. After taking the media out, I emptied the water out with a jug until I could lift it.