pretty cool stuff right there thanks for the link, i made this thread because i am new to the whole sump thing and am in the process of building one just trying to see what works for people. i plan on making a sump with three stages would the first with either pot scrubbies or some sort of other filter materiel be sutable enough for that? the second section i will definatly use some sort of ceramic media,more than likely ceramic rings, and the third will be the pump. is there anything that i can use filter wise for the first section that will last longer than a few days, as you said the bags usually only last about that long. that just sounds like a lot of time and money either having to clean them constantly due to getting clogged so fast or replacing them.