So just filled the pool (it's about 1/4 way up the skimmer now)...I'm getting a steady drip out of my sand filter. I checked to make sure the strainer was in and the drain plug is tight. I don't know if I should tighten it some more....don't want to over tighten it. I haven't turned anything on yet as I still need 2-3 more inches of water. Should I overtighten it, or are drips normal the first time you get water in there?