I have a Pentair Dynamo pump that I believe has a shaft seal leak based on what I've read. I am confident that I can fix this on my own, but I'm going to have to cut the PVC going into the pump so I can remove it and do the seal replacement. It is plumbed right now directly into the pump without any kind of quick disconnect union that can be screwed off. When I re-plumb this thing I'd like to correct this plumbing mistake and use unions(or whatever it is that I need) to allow for a quick removal of the pump in the future without having to cut PVC and replace it. My plumbing is 1 1/2 PVC and I'm wondering if someone can point me to exactly what I need as far as a union or such to reconnect this the proper way this time around? I can snap a photo if needed to show what I've got here