Gray tank plugged, limited options
Yes, I know it's been beaten to death but please bare with me. 70, disabled, on SS so on a budget. Not the issue, just sayin'. Yes, I'd love to have Joes RV Specialist come out but I need to try some...
Forum Discussion
I've done what you suggest, but on the black tank. They sell a back flush valve that twists on like the drain hose. I think it was called a flush master. With the hose connected, you close the valve and turn the water on. I used it twice and it worked for me.
I had the wife watch and tell me when it started to come up inside so I could shut the water off quickly.
The issue ended up being a large #3 phillips screw driver in a bend of the pipe catching anything solid. No problem since removing it.
A couple of months ago, one of our forum members had an issue after using his camper about 5 years. He bought it new. Opposite of your issue but could be relevant. He drained his tank and then couldn't close the valve. He found a plastic drink bottle stuck in the Y of the drains. Your kitchen drain may be smaller pipe that a bottle could completely seal. I know a bottle wouldn't fit through the sink drain but since we're speculating, the hole was open before it was installed.
They also sometimes leave the plastic cut outs in the tank, what are the odds of having an issue with it.
Try the water back pressure. If the tank is empty and the valve is work it will prove that too.
I had the wife watch and tell me when it started to come up inside so I could shut the water off quickly.
The issue ended up being a large #3 phillips screw driver in a bend of the pipe catching anything solid. No problem since removing it.
A couple of months ago, one of our forum members had an issue after using his camper about 5 years. He bought it new. Opposite of your issue but could be relevant. He drained his tank and then couldn't close the valve. He found a plastic drink bottle stuck in the Y of the drains. Your kitchen drain may be smaller pipe that a bottle could completely seal. I know a bottle wouldn't fit through the sink drain but since we're speculating, the hole was open before it was installed.
They also sometimes leave the plastic cut outs in the tank, what are the odds of having an issue with it.
Try the water back pressure. If the tank is empty and the valve is work it will prove that too.
