I have an Intelliflo VS and Iím curious if I am not utilizing it appropriately.* Iíve always had the pump running at two speeds, a high speed for a few hours, followed by a low speed for a few more hours.* For example, right now it runs for 3 hours at high speed and 5 hours at low speed.* Should I be running this thing at more than just 2 speeds? And if so, should it be run almost all day, just utilizing an ultra low speed for most of the day?