Hoping someone can help me. My pump and filter are brand new, everything was just installed this past weekend. Starting this evening, when i'm in normal pump/filter mode, was starts flowing out of the backwash/waste hose. I turned the pump off and back on. It filters fine for about 15-20 minutes, and then water starts spouting out of the backwash/waste hose again. Am I missing something? A setting or something? Is something not working properly? I ran a search on the site and couldn't find anything out.