Where the intake and output screw into the top of the reactor is leaking. It's sitting in the sump but I would like more of that water getting forced through media instead of leaking all over. I am using the o-rings I even used a wrench to get them on there as tight as I dared. Still leaks like crazy. Any ideas how to prevent this? My much cheaper Phosband reactor is much better although much less aesthetically pleasing.