I have a single speed 2HP pump that feeds a pool/spa combo (with waterfall from spa to pool). I kept the pump motor on life support two years ago with a capacitor replacement but now it is all but dead. I can’t find much info on the impact of a VSP on the waterfall. Currently the waterfall operates whenever in pool mode (Jandy automation) and turns off in spa mode. Methinks if it has lower flow from VSP the waterfall will become a dribble. I’m not looking to replumb at this time but also hate the thought of replacing with an inefficient single speed. Any thoughts/recommendations? I’ve searched all over and can’t believe I am the only person with this question (or I have terrible searching skills).