I have been running a NorthStar 1.5 HP pump which supposed outputs same amount of power as 2 HP for the past 16 years and the bearings are going bad. I have a 20x48 inground pool which holds about 40,000 gallons of water. The pool is also plumbed with 2 inch pvc resulting in a flow rate of 80 gpm. I currently run the pump on a timer for 9 hours a day to turn the pool over. It's been a great pump with minimal issues for 16 years but I'd like to buy a more energy efficient pump. I have been considering VS pumps. Any opinions on a good VS pump for my pool and have folks really seen a savings in energy? Are the electronics problematic? Should I keep it simple and replace my 16 year old NorthStar pump or bite the bullit and upgrade to VS pump to save money?