I tried my hand at building a DIY sump out of a sterlite tower and have a pot Scrubbie question. The order of my filter media is as follows: first drawer blue bonded filter media over a sheet of 50 micron polishing pad, second drawer filter floss over blue bonded filter media, drawer three pot Scrubbies, drawer 4 pot Scrubbies, drawer 5 pot Scrubbies. The last drawer I removed and put my heater, some chemi-pure and old filter media from an established aquaclear 70. The issue I have is the last drawer of pot Scrubbies is submerged in water. I'm running a Rio 1700 and the height of the water is may be a half inch to an inch above the pump. I don't have enough room to raise the sterlite tower underneath the tank. The last drawer of pot Scrubbies probably shouldn't be submerged. Should I remove one of the layers of mechanical filters and swap it out for the pot Scrubbies drawers, or leave the set up as is? Thanks


