We are first time pool owners and have an above ground pool with a sand filter. After vacuuming the pool we typically backwash. The past week once we turn the filter back on, after doing all of that, it spits dirt all over the pool floor and it looks like we never even vacuumed it. Can anyone help with what we need to do or what we are doing wrong? We are new to this all and feeling pretty discouraged. Not to mention tired of vacuuming everyday!!