See, I’m a maintenance phobe, if I can find a way to dodge it, I will. So I’ve never really been comfortable with the coarse-finer-finest approach - to me that just three type of songs to wash. I’d just put the finest first, and have only one sponge to wash! 😅
Also, you’ve missed my point on the trickle filter - DO can be one of the main benefits of a sump.
Also, you’ve missed my point on the trickle filter - DO can be one of the main benefits of a sump.