I see that procon pumps (series 4) can range from 115gph to 330gph at 250psi. If I buy a 330gph pump but don't end up processing that much material (because of the membranes) what will happen to the pump? I assume that no matter which one I get, 115gph or 330gph, it will be able to build up to 250 psi so long as there is resistance.

I guess my question is; Will it hurt anything if I get the higher volume pump but end up unable to process 330gph of sap? (I realize that those manufacture numbers are for water at 70 degrees. This also give me direction for future expansion.