I will most likely be getting some storage. It is two 120 gal compression tanks. They are 400 bucks for the both though. I was wondering how storage works. The main question is do I need to hook up an extra pump to pump the water that's in the storage or do most use one pump ( the one outside by the boiler) Is it better to use two pumps? Also I know 800 for 240 gal of storage is expensive but I want it in the basement. Any ideas or comments would be appreciated. Thanks. Also, I didn't buy the tanks yet cause I'm still looking for a cheaper way to make storage.