Lovemydd, just let your DD know that she really isn't missing anything - the WWTP field trip is not that much fun. The professor that took us on that field trip looked up the stats on the WWTP operator (former student of his) and found he was at the bottom of the class. He warned us that we could end up at the WWTP too if we didn't study...the stench was awful, even though the operator said it didn't smell bad that day.