When I dump, I raise the front of the rig which seems to help get everything out of the black tank. I also put one of these adapters on, which used in parallel with the factory valve, I get zero drips when uncapping and hooking up my black tank drain hose.
https://www.etrailer.com/RV-Waste-Va.../CAM39085.html
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2019 Keystone Montana 3560RL, 2020 Chevy 2500 HD, Firestone airbags, Air Lift wireless compressor, Curt gooseneck, 20K Reese Goosebox, TST-507, USMC combat vet & retired LEO. Robert, Anika, Breanna, Dylan (daughter-in-law Stephanie). & our Great Pyrenees Layla
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