Ok, thanks, I will contact you once i get my sump, it is on order and should get it sometime in the next 2 weeks. At that time ill let you know any specifics as to what you need to build a plate to fit the Klir 4 into my sump. Also, i knew it was just a drop in, but i thought the outlet coming from the tank had to be plumbed into the Klir, didn't know it was just a drop in and that the water volume where the socks are was all that was needed for it to work. I will also contact you regarding maybe making a lid for my tank, but like i said, don't even have the tank yet so I can wait on that as well.