I have a 16' Casita
. I just emptied my tanks on Friday. They weren't full, but I wanted to refill my fresh water tank and thought I'd empty them first. The last time I emptied the tanks was over a week before. That means, in over a week of constant living in the camper, I hadn't filled up both tanks.
After emptying the tanks, I drove back to where I'm parked in a friend's driveway for the next 10 days and filled my fresh water tank. It's two days later, and the water doesn't want to drain out of the kitchen sink. When it finally did, it backed up into the shower. This would normally indicate the grey water tank is full. I don't understand how it could be full in just 2 days when it didn't get full in over a week the last time. I think I've been just as conservative of water as I was before.
Could something have gotten clogged which is making the water back up?
I would just go and dump again, but getting it backed into this driveway is really hard and I'd rather not have to do it again. I've been using the facilities in the house quite a bit to avoid having to empty again until I'm ready to pull out of here.
I have a strainer in the kitchen drain to keep food from going down the drain. I never fry anything so I don't think there could have been much grease go down. Why it would be backing up is really a mystery.