With new building codes in effect in Florida, I’ve been asked quite a lot about variable speed vs. variable flow pumps, especially with solar pool heating systems. The answer turns out to be a bit complex. The simple answer is that a variable speed pump will give you better trouble-free performance while still resulting in significant energy savings. The whole story is more complex. At first glance, the features of a Variable Flow pump like the Pentair Intelliflo VF seem perfectly suited for a solar pool heating system. The pump would operate at a constant flow rate that is optimal for solar pool heating, adjustingRead More →