Our ceiling has a water line and it is directly below the. We believe it may be the kids tub. The caulking all around is very nice and dry, the floor isn't wet. The only assumption I have is the faucet directly in the tub. There isn't a large washer or caulking around the faucet. Could this be the cause of our water? There isn't a trap door to look behind to verify.

There isn't a large washer or caulking around the faucet. Could this be the cause of our water?You could remove the face plate and check for moisture. Idf you dfon't find any close of the tub drain and fill the tub about 1/2 full. Let it set and watch the ceiling for fresh water spots. If you see any drain the tub and let me know. If you see fresh spots as the tub drains the ceiling will have to be opened up and the leak repaired. Good luck, Tom

Tom, went to Home Depot and bought an access panel and installed. Drywall can be seen from opening and didn't appear wet at all so I assummed it was very small amounts of water at different times that was causing the crack. Unscrewed faucet and their was a large gap between plastic and wall. Long story short, pushed plastic back to wall, screwed back, siliconed around area, replaced faucet and added small silicone bead around faucet. Water line was behind faucet area. Thanks much for inspiring me to dig in!

Let us know if it gives you any more trouble. Good luck, Tom