looking to change heyward 2hp superpump which went bad after 7 years. was going to replace with another heyward until i started reading up on vs pumps and in particular the pentair series. can you recomend anything. i have a 18x36 inground with a 12x15 L attached vinyl liner.pool was built 7 years ago. i also have a 4 person spillover hottub attached with a seperate heyward 2hp superpump for it and a Heyward DE 4820 filter.