Well then I don't have one! [img]/forums/images/icons/laugh.gif[/img]
I will check the pressure switch settings and the air pressure in the tank tonight and see if anything is out of whack there. Before we replaced the original 2hp/20gpm pump with the new pump, there was only a very slight "bump" in the water when the pump came on. This almost off, then bang on with the ater pressure/volume was a very noticeable change that started when the new pump was installed. I'm thinking that after the pump was put in nobody checked the switch or air pressure - from the info that I've gotten here it appears to be more annoying than harmful and mostly a matter of calibration.
Thanks again for your help.
I don't know about "best tank they sell" - I really think, as someone else said, that most of the bladder-type tanks from any of the major manufacturers are pretty close in quality.
It looks like 119 gallons is the biggest Well-rite (Smart Tank). Note that the size rating of a tank (119 Gal) is significantly more than it's drawdown capacity (i.e. how much water you can draw before the pump kicks on. This Link has the specs.