Does anyone have any experience with the waterbox 170.4/5 plumbing? I'm wanting to run a Ecotech Vectra M2, but idk what fitting to use to attach it to the supplied return line... I'm sure I'm just an idiot, but any help or advice would be super helpful! Also, if I need to get a different pump, I'm perfectly fine with that. If I do, I'd love to hear some recommendations or hear what you guys are running on yours! Thanks!