Calls are coming in to a tip line , Abben said , and each bit of information is being checked out . NEW : Officials expect the house to be cleaned by Friday . Father says the family has been polygraphed , which is hard but necessary . Mother says the girls do n't go to or swim in Meyers Lake . Scent dogs ran around the lake and stopped at the water 's edge .
NEW : Officials expect the house to be cleaned by Friday . Father says the family has been polygraphed , which is hard but necessary . Mother says the girls do n't go to or swim in Meyers Lake . Scent dogs ran around the lake and stopped at the water 's edge .