I am using a different filter for this one.which makes the lid not really fit to well & will over flow lol. It seems to me that the filters for this penguin does not do to good of a job, So I am using the kind that my old filter had. I like them since the cotton stuff is on both sides.
Thanks for replying. Maybe another question if you can also help . Does it make a difference if I put the cartridge in the front or back? There is room for two of them But. if using only one, does it matter or is there a better preference back or front?