Greeting to all !
I recently had the good furtune of getting 2 DDP-550PC pumps. I have done quite a bit of research on these and would like to know if there is anyone out there that isDDP-550PC using them. they are designed to be sump pump but are made from NSF or FDA parts. here is the link to the PDF on the pump, I'm sure there is someone out there that's "wicked smaat" (as we say in Mass, notice there is no "r" and an extra "a").
they are expensive pumps, so that must mean they're great !