My Coach man Catalina has been stationary this past year and plan on using it at my maintenance shop.my problem is my waste tank was full and had not been emptied for a while so i called my local sept...
When I did it I put the digester in and filled it with water. Let it sit 24 hour. Then go drain and flush a lot of water through it. Worked for me, effectively doubled my black tank capacity and got rid of an awful odor.