09-15-2016, 03:28 PM
That's interesting, MarkP. I cannot fit a 42 gallon one under there but I can fit two 20 gallon ones in tandem. Here's what I don't quite get, though: what do the pressure tanks do? I seem to have good pressure without them. So, let's say they are supposed to relieve the pump and they store 20 accepted gallons. Doesn't the pump have to come on anyway to refill them? It's not continuously operating as it draws water because of the pump, but it has to pump the exact same amount of water, correct? The pressure tanks are just a way station. I know there is something I'm missing in this calculation. I know they serve a purpose. But I don't know what it is.