My booster pump (Polaris BP4) seal is making a lot of noise and leaking. I know that I could get a seal kit and do the repair but it's an older pump that showed signs of binding upon startup this Spring so I'm thinking of just installing a new one. As a relatively new inground pool owner I'm confused as to which brand of new pump to go with. Polaris and Hayward pumps seem to be the most common but I've not found any information regarding the merits of one brand over the other. Hayward is generally more expensive and I'm wondering if that price difference translates into better service life? Also note that there are single and dual speed pumps available but don't know what the advantage of a dual speed would be. Anyone with experience and/or opinions on one brand over the other care to share?