I use the Webtrol PC50R a lot for RO water loops. I have a new job for a 25 Ton Brinemaker where I need to Draw saturated brine (1.2 SG) 7' vertical and 11 horizontal on 1" PVC pipe. The pump`s performance curve is from 60gpm at atmosphere, and 10gpm at 50PSI. It doesn`t specify if this is a positive draw or from what depth.

I need to discharge 20gpm at 20PSI. Is there a way for me to calculate if the pump will meet my requirements without an actual wet run?