Dripping from overflow tubes? 161SL

[Saffikeagan]

I was out camping the other weekend and noticed that throughout the weekend there was a wet puddle under the overflow valves that never dried up (and we were in the desert); so, something was consistently dripping. Any ideas?

[Hamptont]

Are you talking about the overflow tubes in the front of the trailer? Dripping near the battery box vicinity?
When it was doing this, what was the level of your grey tank?
Or are you talking about the white twist valve on the right side of the unit near the grey discharge gate valve?

[Saffikeagan]

The overflow valves as stated. My grey and black tanks were less than 1/3 full.

[DonaandDon]

How full was your freshwater tank?

At times I have had my check valve leak back and overflow my FW tank, causing a puddle.

[Saffikeagan]

We parked, filled the tanks to over flowing, stopped filling, and started using the water. How sensitive are the overflows? We were at a state park so using water only for handwashing and minimal cooking for two days. I'm thinking we used all of maybe 5-10 gallons. Would the water level still be high enough that RV motion from movement inside would cause splash overflow?