Originally Posted by bakken
The OP is having blockages ABOVE the tank, and not at the drain valve.
Bakken and Treaves and Others
Let me reiterate:
The only reason I had the tank pumped out was to make sure that the level indicators were not reading 1/3 if it was full. Once assured that the tank was empty I new that snaking the line would not be an exercise in futility.
As mentioned earlier, it is presently cleared and I will use it only for liquid diposal with liquid digester. When I get home I will go into it with a camera to make sure that FR did not leave material that would cause flow interferance. If rhere is no interferance then perhaps it is a flaw design that FR will have to deal with
Meanwhile I will go fishing!!! ( In the lake)
Thanks to all for the suggestions.