I have a 25,000 gl. pool. The 1 HP Hayward Superpump just burnt and I replaced it with a brand new Hayward 1 HP pump. The old pump psi was 30-40 and the new pump psi is less than 10. I can't figure out what could be the problem. There are a couple of leaks that need to be fixed but they were there with the old pump, as well.