What size booster pump should be on my spot free? 4 bays all running 2507 tips? It’s a super saver system with a sta rite pump but the model number plate has faded out and no longer visible. I will be replacing with another sta rite pump but would like more pressure to the bays than I had before the pump failed. (It’s the original pump that came on the system 17 years ago) Thanks in advance!