I should probably call a plumber but am determined to fix this myself. I don't know what brand the valve/diverter is. I've used vice grips, liquid wrench, WD40, any tool that you can imagine and can't get this bloody thing out. To be honest it's hard to tell where I'm supposed to be grabbing, turning etc. I can't find a diverter that looks like this so I'm just guessing. Uploading a pic in case anyone can help shed some light. Water is leaking continually from the pushpin so I assumed I was suppose to replace the diverter? Thanks...