I've got the 4000 and 6000 series, great pumps for the money, pretty quiet,push tons of water,run very cool in either wet or dry applications, one bad thing I've had is they have a hard time restarting after power is off, give them a second or to and they will start but it's not instant on at first. if I had to re-do the pump system I have now I would go with a sequence, or little giant style rubber impeller centrifugal pump.