So today I was finally able to find the right pump for my uv sterilizer. All the other ones were running to fast but this one seems good. I have the pump in the middle part of my sump and the output hose in my return chamber. I hear this is a good way is that correct? Would it be normal for the middle part to drain bc of the pump but will water still all be going thru uv. Basically I have 3 parts of sump. First part skimmer and everything else. Overflows from baffle to middle section which just has uv pump. Then a high low baffle into return chamber. The high low baffle fills up and appears to maybe overflow a little back into middle part. Kind of the only way I can figure it out. Is it still effective this way? And also will the hose in return affect my ato at all when I adjust it back. Thanks