I have a 21 foot round above ground pool and when we connected the hoses to the fittings I have a leak. It drips about once every 45 minutes to an hour. My husband says its fine and you cant have a pool with "No Leaks" and I disagree. we also have a small leak at the thread of a fitting going into the sand filter and I was just wondering how to fix it. They are rubber hoses with clamps and the fittings are plastic or PVC.