Well, I have a Waterway Crystal Water Cartridge Filter 525 Sq Ft on it's way so now my mind is turned towards the plumbing. I would like to go with all 2" pvc but I have a couple pinch points I am concerned about. #1, my skimmer to pump is presently 1.5" flexible and I'm not sure if I can put in 2" without reducers. #2, my return is a 1.5" eyeball and the automatic chlorinator that I have (and not used before since I use liquid chlorine but would like to have one down the road for when we're away from home) is also 1.5" so again, reducers. I have a gas heater (with a bypass) as well. Here are some pictures of the present setup and the last one is the new filter with both input and output on the same side. Will these smaller points make a big difference or can I make it all 2"?