Hi folks! Scraped through my first pool season with a few blue limbs and green water; the issue is finding a pump for an above ground index pool (15ftx4ft) that can push water up 10 foot to the roof for the solar panels and then back 15 foot to the pool with the warming goodness and maintain a healthy pool, i.e., filter effectively. The basic pump doesn't manage the task, any recommendations on a decent pump that will do the job?