[steve the plumb]

Take a close up pic of whats leaking.I have also used the oatley brand of thread sealant.I have used it on one or two of my threads for my system.I used very little and I am not sure if its 100% reef safe.Its a liquid Teflon and its gray in color.I used it for my dart NW pump,when I got it the thread was leaking.This stuff works great and you don't have to use a lot of it.