gatevalvemod

So...I've got no clue what I'm doing when it comes to plumbing, but I want to replace the diaphragm valve with a gate valve system. Does anyone know what parts I need to get for either a Red Sea Reefer 625 or 750?

Hi everyone, I recently did the asm gate valve mod and I think I might have done something wrong. I’ve attached pictures, the only way I was able to get it to work and actually adjust the skimmer properly, the skimmer is sitting in like 2 inches of water. Someone please explain how I’m supposed...