Are there any internal differences between a Polaris 360 and 380? The reason I'm asking is that I have Polaris 380 (booster pump powered) and I wouldn't mind getting rid of the booster pump (less energy usage, less complexity, etc.). This winter I have installed a new Hayward S270T2 sand filter along with a Jandy SHPF1.5 pool pump and now I have more pressure from the return lines than ever before. The main return line is a 1.5" line, while the sweep line is a 1" line.
Thank you in advance,