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Black Waste Seeping
I have a 2020 3930. It has 2 black and grey tanks and one fresh.
Every time I'm done with camping I goto dump station and when I open the cap it seems to have back pressure, about 1/4 of Black waste comes out. The tech told me to hold my valves closed longer as they are the cable system and need a few more seconds to make sure they are closed. I dont believe this is the isssue since I have a build up of pressure when cap is opened.
Last time cap was removed was at same place of storage.
Ideas? I'm going to record this next time but thought I'd ask here as well. Thanks
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